{"title":"Choate | Kawasaki Products","description":null,"products":[{"product_id":"70z-ii-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70Z-II Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70Z-II Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003e6BTA 5.9L industrial engine\u003c\/b\u003e is the backbone of the Kawasaki 70Z-II, engineered to deliver relentless torque and durability in the most demanding construction and earthmoving environments. Whether you are cycling buckets in a quarry or handling heavy materials on a job site, this remanufactured long block is built to outperform.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader runs smoothly and quietly. This precision balancing protects your transmission, hydraulic pumps, and drivetrain components from the parasitic vibration that leads to premature wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to withstand the high-cycle heat of heavy-load operations, preventing the valve-head separation that can lead to catastrophic engine failure during critical work hours.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSuperior Block Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the common \"rot-out\" and leaking associated with standard brass or steel plugs, ensuring your cooling system remains pressurized and reliable under heavy load.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we don’t just \"overhaul\" industrial engines; we remanufacture them to surpass original factory specifications. Our 6BTA units undergo rigorous CNC blueprinting to correct OEM flaws, ensuring the ultimate reliability required for high-uptime construction applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eEngine Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003eNew Pistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eWhen your machine is on the clock, downtime isn't just an inconvenience, it’s a loss of revenue. At Choate, we stand behind the precision engineering of our \u003cstrong\u003eKawasaki 70Z-II\u003c\/strong\u003e engines with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that construction environments are among the most punishing on equipment. From high-load digging to constant idling and rapid throttle transitions, our warranty is designed to give you total peace of mind. Whether you are a fleet manager or an owner-operator, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581757100336,"sku":"CEP70Z2L","price":10200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70z-iii-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70Z-III Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70Z-III Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003e6BTA 5.9L industrial engine\u003c\/b\u003e is the backbone of the Kawasaki 70Z-III, engineered to deliver relentless torque and durability in the most demanding construction and earthmoving environments. Whether you are cycling buckets in a quarry or handling heavy materials on a job site, this remanufactured long block is built to outperform.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader runs smoothly and quietly. This precision balancing protects your transmission, hydraulic pumps, and drivetrain components from the parasitic vibration that leads to premature wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to withstand the high-cycle heat of heavy-load operations, preventing the valve-head separation that can lead to catastrophic engine failure during critical work hours.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSuperior Block Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the common \"rot-out\" and leaking associated with standard brass or steel plugs, ensuring your cooling system remains pressurized and reliable under heavy load.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we don’t just \"overhaul\" industrial engines; we remanufacture them to surpass original factory specifications. Our 6BTA units undergo rigorous CNC blueprinting to correct OEM flaws, ensuring the ultimate reliability required for high-uptime construction applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eEngine Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003eNew Pistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eWhen your machine is on the clock, downtime isn't just an inconvenience, it’s a loss of revenue. At Choate, we stand behind the precision engineering of our \u003cstrong\u003eKawasaki 70Z-III\u003c\/strong\u003e engines with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that construction environments are among the most punishing on equipment. From high-load digging to constant idling and rapid throttle transitions, our warranty is designed to give you total peace of mind. Whether you are a fleet manager or an owner-operator, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581760049456,"sku":"CEP70Z3L","price":10200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70z-iv-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70Z-IV Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70Z-IV Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eB5.9-C industrial engine\u003c\/b\u003e is the legendary workhorse powering the Kawasaki 70Z-IV. Known for its mechanical simplicity and relentless torque, this engine is designed to handle the high-stress cycles of earthmoving and material handling. Our remanufactured long block takes this proven platform and applies modern precision machining to eliminate factory weak points and maximize your machine's uptime.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader operates with minimal harmonic distortion. This protects your hydraulic pumps, transmission, and mounting hardware from the steady vibration that leads to component fatigue and costly leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e We install all-new, upgraded exhaust valves designed to withstand the high-heat cycles of constant digging and loading. This prevents valve-head separation, a common cause of catastrophic failure in heavy-duty industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eReliable Cooling Integrity:\u003c\/b\u003e Billet freeze plugs are installed to replace the standard stamped steel or brass plugs. This prevents the \"blow-out\" or corrosion-related leaks that can lead to overheating and engine seizure in the middle of a shift.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized for Load:\u003c\/b\u003e Every aspect of this build is engineered to handle the rapid throttle transitions and high-torque demands characteristic of the Kawasaki 70Z-IV’s duty cycle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we don’t just \"fix\" engines; we remanufacture the B5.9-C to surpass original factory specifications using advanced CNC blueprinting.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eConstruction-Grade Confidence: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eIn the construction world, if the loader isn't moving, the job isn't making money. At Choate, we stand behind the durability of our \u003cb\u003eB5.9-C Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that the Kawasaki 70Z-IV is often the centerpiece of a fleet, subjected to dust, heat, and heavy loads. Our warranty is built to provide peace of mind to owner-operators and fleet managers alike, ensuring that your investment is protected by the highest standards of American engineering and craftsmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581774008624,"sku":"CEP70Z4L","price":10200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70zv-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70ZV Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70ZV Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"citation-19\"\u003eThe \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-19\"\u003eQSB5.9 Cummins platform\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-19 citation-end-19\"\u003e is the high-performance heart of the Kawasaki 70ZV.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-18 citation-end-18\"\u003eUtilizing a 24-valve cylinder head and advanced electronic controls, this engine is designed to provide the rapid throttle response and heavy-lifting power required for high-cycle wheel loader applications.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Our remanufactured long block is engineered to exceed OEM standards, ensuring your machine stays out of the shop and on the job site.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_93f64ec50d96a4e0-20\"\u003e\u003cb\u003e\u003cspan class=\"citation-17\"\u003eVibration Mitigation:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-17 citation-end-17\"\u003e A fully balanced rotating assembly ensures your loader operates with maximum smoothness.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e By eliminating internal harmonics, we protect your hydraulic pump drives, transmission, and operator comfort from the parasitic vibrations that lead to premature wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed for the high-thermal loads of Tier-series engines. \u003cspan class=\"citation-16 citation-end-16\"\u003eThis prevents the valve-head separation common in high-hour industrial engines, protecting your investment from catastrophic failure.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-16 citation-end-16\"\u003e\u003cb\u003eIndustrial Cooling Security:\u003c\/b\u003e We install billet freeze plugs to eliminate the \"rot-out\" and pressure leaks associated with standard stamped steel plugs. This ensures your cooling system remains reliable even under the extreme pressures of heavy material handling.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"citation-16 citation-end-16\"\u003e\u003cb\u003eBlueprint Precision:\u003c\/b\u003e Rather than a simple rebuild, our QSB5.9 engines undergo full CNC blueprinting to correct factory casting inconsistencies, providing a more durable and efficient foundation than a standard factory exchange.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-15\"\u003eAt \u003c\/span\u003e\u003cspan class=\"citation-15\"\u003eChoate Engineering Performance\u003c\/span\u003e\u003cspan class=\"citation-15 citation-end-15\"\u003e, we remanufacture the QSB5.9 to surpass original factory specifications.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Our process utilizes rigorous CNC blueprinting to ensure the extreme reliability required for heavy-duty earthmoving.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eConstruction-Grade Confidence: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eIn the dirt and gravel business, downtime is the enemy. At Choate, we stand behind the precision engineering of our \u003cb\u003eQSB5.9 Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that the Kawasaki 70ZV is expected to perform in harsh, dusty, and high-heat environments. Our warranty is designed to give fleet managers and owner-operators total peace of mind, ensuring that your remanufactured engine is protected against defects in materials and workmanship for the long haul.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581790228784,"sku":"CEP70Z5L","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70zv-2-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70ZV-2 Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70ZV-2 Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eQSB6.7 Cummins platform\u003c\/b\u003e is the heart of the Kawasaki 70ZV-2, engineered to provide the high-torque performance and rapid response required for heavy-duty earthmoving. Whether you’re operating in a high-production quarry or a demanding construction site, this remanufactured long block is built to withstand the rigors of high-cycle loading.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader operates smoothly. This precision balancing protects your transmission and hydraulic pump drives from the parasitic vibrations that cause premature fatigue in industrial drivetrains.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to eliminate high-heat separation. This prevents catastrophic engine failure during the sustained high-load cycles common in heavy material handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the \"rot-out\" and weeping common with standard brass or steel plugs, ensuring your cooling system remains intact through extreme temperature fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Remanufacturing:\u003c\/b\u003e Unlike a standard \"patch job\" overhaul, this long block is blueprint-machined to solve OEM discrepancies, providing a more reliable foundation than a standard factory replacement.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we remanufacture QSB6.7 engines to surpass original factory specifications. Our process involves rigorous CNC blueprinting to ensure the ultimate reliability required for high-uptime industrial applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eOn the job site, reliability isn't just a luxury, it’s the difference between profit and loss. At Choate, we stand behind the precision engineering of our \u003cb\u003eQSB6.7 Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that wheel loaders face some of the most punishing environments, from high-idle periods to wide-open throttle transitions under heavy load. Our warranty is designed to give you total peace of mind while you work. Whether you are managing a large fleet or operating as an independent contractor, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581806088496,"sku":"CEP70Z52L","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70tmv-2-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70TMV-2 Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70TMV-2 Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eQSB6.7 Cummins platform\u003c\/b\u003e is the heart of the Kawasaki 70TMV-2, engineered to provide the high-torque performance and rapid response required for heavy-duty earthmoving. Whether you’re operating in a high-production quarry or a demanding construction site, this remanufactured long block is built to withstand the rigors of high-cycle loading.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader operates smoothly. This precision balancing protects your transmission and hydraulic pump drives from the parasitic vibrations that cause premature fatigue in industrial drivetrains.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to eliminate high-heat separation. This prevents catastrophic engine failure during the sustained high-load cycles common in heavy material handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the \"rot-out\" and weeping common with standard brass or steel plugs, ensuring your cooling system remains intact through extreme temperature fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Remanufacturing:\u003c\/b\u003e Unlike a standard \"patch job\" overhaul, this long block is blueprint-machined to solve OEM discrepancies, providing a more reliable foundation than a standard factory replacement.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we remanufacture QSB6.7 engines to surpass original factory specifications. Our process involves rigorous CNC blueprinting to ensure the ultimate reliability required for high-uptime industrial applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eOn the job site, reliability isn't just a luxury, it’s the difference between profit and loss. At Choate, we stand behind the precision engineering of our \u003cb\u003eQSB6.7 Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that wheel loaders face some of the most punishing environments, from high-idle periods to wide-open throttle transitions under heavy load. Our warranty is designed to give you total peace of mind while you work. Whether you are managing a large fleet or operating as an independent contractor, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":66581821751600,"sku":"CEP70TMV2L","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"70z7-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 70Z7 Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 70Z7 Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eQSB6.7 Cummins platform\u003c\/b\u003e is the heart of the Kawasaki 70Z7, engineered to provide the high-torque performance and rapid response required for heavy-duty earthmoving. Whether you’re operating in a high-production quarry or a demanding construction site, this remanufactured long block is built to withstand the rigors of high-cycle loading.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader operates smoothly. This precision balancing protects your transmission and hydraulic pump drives from the parasitic vibrations that cause premature fatigue in industrial drivetrains.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to eliminate high-heat separation. This prevents catastrophic engine failure during the sustained high-load cycles common in heavy material handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the \"rot-out\" and weeping common with standard brass or steel plugs, ensuring your cooling system remains intact through extreme temperature fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Remanufacturing:\u003c\/b\u003e Unlike a standard \"patch job\" overhaul, this long block is blueprint-machined to solve OEM discrepancies, providing a more reliable foundation than a standard factory replacement.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we remanufacture QSB6.7 engines to surpass original factory specifications. Our process involves rigorous CNC blueprinting to ensure the ultimate reliability required for high-uptime industrial applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eOn the job site, reliability isn't just a luxury, it’s the difference between profit and loss. At Choate, we stand behind the precision engineering of our \u003cb\u003eQSB6.7 Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that wheel loaders face some of the most punishing environments, from high-idle periods to wide-open throttle transitions under heavy load. Our warranty is designed to give you total peace of mind while you work. Whether you are managing a large fleet or operating as an independent contractor, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"2014-2015","offer_id":66581859008816,"sku":"CEP70Z7L1415","price":12900.0,"currency_code":"USD","in_stock":true},{"title":"2016-2024","offer_id":66581859041584,"sku":"CEP70Z7L1624","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"80z7-long-block-diesel-crate-engine-choate-performance","title":"Kawasaki 80Z7 Wheel Loader Long Block Diesel Crate Engine Choate Performance","description":"\u003ch2\u003e\u003cstrong\u003eKawasaki 80Z7 Wheel Loader Long Block Engine\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eQSB6.7 Cummins platform\u003c\/b\u003e is the heart of the Kawasaki 80Z7, engineered to provide the high-torque performance and rapid response required for heavy-duty earthmoving. Whether you’re operating in a high-production quarry or a demanding construction site, this remanufactured long block is built to withstand the rigors of high-cycle loading.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVibration Mitigation:\u003c\/b\u003e A fully balanced rotating assembly ensures your wheel loader operates smoothly. This precision balancing protects your transmission and hydraulic pump drives from the parasitic vibrations that cause premature fatigue in industrial drivetrains.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Valve Integrity:\u003c\/b\u003e Features all-new, upgraded exhaust valves designed to eliminate high-heat separation. This prevents catastrophic engine failure during the sustained high-load cycles common in heavy material handling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Protection:\u003c\/b\u003e Billet freeze plugs are installed to eliminate the \"rot-out\" and weeping common with standard brass or steel plugs, ensuring your cooling system remains intact through extreme temperature fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Remanufacturing:\u003c\/b\u003e Unlike a standard \"patch job\" overhaul, this long block is blueprint-machined to solve OEM discrepancies, providing a more reliable foundation than a standard factory replacement.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eAt Choate Engineering Performance, we remanufacture QSB6.7 engines to surpass original factory specifications. Our process involves rigorous CNC blueprinting to ensure the ultimate reliability required for high-uptime industrial applications.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Block Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eEach of our engine blocks are CNC blueprint machined using state-of-the-art CNC machines. This process ensures perfect dimensions, precise tolerances, and optimal alignment. This starts with decking the surface of the block to achieve the necessary flatness and smoothness (Ra 30 or better) required for flawless sealing with MLS head gaskets. The cylinders are then diamond honed to an extremely tight tolerance to match the piston diameter (within the nearest 0.0001 inch). Following honing, the main bearing bores are line honed to establish a true, straight centerline for the crankshaft. Finally, the cylinder bores are bored to a true 90 degree angle from the crankshaft centerline.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Machining:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eOur cylinder heads are fully machined and enhanced in-house to improve airflow and reliability. Each head is first magnafluxed and pressure tested to ensure they are free of any cracks or leaks. The surface is then precision decked to an extremely smooth finish, guaranteeing the necessary flatness for a perfect seal with MLS head gaskets. Internally, the valve seats are machined to optimize airflow and prevent common failures, and the entire valve train geometry is blueprinted to specific tolerances to reduce lifter preload and prolong component life.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eRotational Assembly Balancing:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe balancing of the rotational assembly is crucial for eliminating vibration and maximizing engine longevity. This precision work involves checking and correcting the balance of the crankshaft, connecting rods, and pistons. The crankshaft is thoroughly checked for run-out and inspected for fatigue before being polished and ground to strict concentricity tolerances (0.0005 or less) to ensure the new bearings receive the best possible surface. Rods are inspected and conditioned, and all bearing clearances checked to ensure proper fitment with the new bearings. Each of the pistons, rings, and pin retainers are meticulously weight matched (to a tolerance of 2 grams or less) prior to crank balancing. Then the entire assembly is dynamically balanced on specialized equipment. This ensures that the engine runs smoothly, minimizing stress on the bearings, and extends the overall life of the components.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponents and Parts:\u003c\/h3\u003e\n\u003ch5\u003e\u003cstrong\u003eEngine Core Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder Block\u003c\/li\u003e\n\u003cli\u003eCrankshaft\u003c\/li\u003e\n\u003cli\u003eConnecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003ePistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Head\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eNew Main Bearings\u003c\/li\u003e\n\u003cli\u003eNew Rod Bearings\u003c\/li\u003e\n\u003cli\u003eNew Cam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eBillet Freeze Plugs\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eGaskets and Seals\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Head Gaskets\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront Gear Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCylinder Head Components\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Socket Plug\u003c\/li\u003e\n\u003cli\u003eNew Oversized Valve Seats\u003c\/li\u003e\n\u003cli\u003eNew Threaded Plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIndustrial Reliability: 2 Year \/ 2,000 Hour Warranty\u003c\/h3\u003e\n\u003cp\u003eOn the job site, reliability isn't just a luxury, it’s the difference between profit and loss. At Choate, we stand behind the precision engineering of our \u003cb\u003eQSB6.7 Long Block Engines\u003c\/b\u003e with a comprehensive \u003cb\u003e2-Year \/ 2,000-Hour Warranty\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eWe understand that wheel loaders face some of the most punishing environments, from high-idle periods to wide-open throttle transitions under heavy load. Our warranty is designed to give you total peace of mind while you work. Whether you are managing a large fleet or operating as an independent contractor, we ensure your investment is protected against defects in materials and workmanship.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"2014-2015","offer_id":66581861531952,"sku":"CEP80Z7L1415","price":12900.0,"currency_code":"USD","in_stock":true},{"title":"2016-2024","offer_id":66581861564720,"sku":"CEP80Z7L1624","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KawasakiLongBlockEngine1.png?v=1779726562"},{"product_id":"kawasaki-70z-ii-70z-iii-70z-iv-cylinder-head-daily-driver","title":"Kawasaki 70Z-II, 70Z-III \u0026 70Z-IV Cylinder Head Reman - Daily Driver (5.9L 12V)","description":"\u003cp\u003eGet your Kawasaki wheel loader back to work with an OEM-spec cylinder head engineered specifically for the rigorous demands of industrial operation. This Daily Driver tier cylinder head for the 5.9L 12-valve engine is assembled using a renewed, pressure-tested OEM core combined with brand-new, high-quality internal components to guarantee reliable operation, maximum uptime, and long-term durability on the job site.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a high-quality OEM core casting that has passed rigorous magnetic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis head features critical durability upgrades backed by an intense inspection protocol to guarantee every industrial specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e After machining, every cylinder head is pressure-tested at 40 PSI to confirm zero leaks and ensure absolute casting integrity before it ever reaches your machine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for increased security, preventing the common leaks associated with pressed-in factory plugs under severe thermal stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes an extensive final cleaning and strict quality control inspection. A detailed sign-off sheet is generated, recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e Valve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled spring heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and lock positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cem\u003eRecording this ensures you receive a cylinder head that is significantly improved over the original factory design and ready for years of demanding earthmoving operation.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common failure points of the factory 5.9L cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing head gasket sealing performance to withstand continuous thermal cycling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e The head is custom blueprinted to alter valve height and valve recession, achieving maximum durability under continuous duty.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Valve Train Longevity:\u003c\/b\u003e Valve stem heights are precisely altered to optimize valve train geometry. This crucial modification decreases wear and significantly extends the life of the lifters and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize efficiency and ensure a perfect seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee a flawless seal against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eQuality begins before machining with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to eliminate residual industrial oils and grease by baking them away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to remove rust and scaling, a crucial step that relaxes the cast iron before precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken bolts and studs are professionally removed, leaving all threads clean, chased, and ready for a seamless installation on your loader.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304084930864,"sku":"CEP59KA12VDHR","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/5.9Cummins12vCylinderHead_3ad86a5d-697c-4e4f-8105-ebefb801642b.png?v=1783557574"},{"product_id":"kawasaki-70z-ii-70z-iii-70z-iv-cylinder-head-workhorse","title":"Kawasaki 70Z-II, 70Z-III \u0026 70Z-IV Cylinder Head Reman - Workhorse (5.9L 12V)","description":"\u003cp\u003eKeep your heavy equipment operational under the most demanding workloads. The Workhorse tier cylinder head for the Kawasaki 70Z-II, 70Z-III, and 70Z-IV wheel loader is specifically engineered for sustained heavy-duty industrial work, continuous duty cycles, and extreme thermal loads. Assembled using a renewed, pressure-tested OEM core combined with brand-new, high-quality internal components, this cylinder head integrates premium durability upgrades to handle elevated cylinder pressures and eliminate common field failures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Daily Driver: Precision O-Rings\u003c\/h3\u003e\n\u003cp\u003eSevere industrial operation causes rapid thermal expansion, which is the leading cause of head gasket failure in heavy equipment. The Workhorse model solves this by features precision-cut O-rings machined directly into the deck surface. This mechanical modification locks the head gasket securely in place, dramatically improving sealing under high cylinder pressures and severe operating temperatures to ensure zero combustion leaks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a high-quality OEM core casting that has passed rigorous magnetic testing and is machined to like-new specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis head features critical performance and structural upgrades, backed by an intense inspection protocol to guarantee every industrial specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e After machining, every cylinder head is pressure-tested at 40 PSI to confirm zero leaks and ensure casting integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for increased security and leak prevention, replacing factory pressed-in plugs that fail under thermal stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes an extensive final cleaning and strict quality control inspection. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common factory vulnerabilities of the 5.9L industrial cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e The head is custom blueprinted to alter valve height and valve recession, achieving maximum reliability under continuous loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely altered to optimize valvetrain geometry and remove excessive preload. This crucial modification decreases wear and significantly extends the life of the lifters and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize efficiency and ensure an airtight seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to eliminate residual industrial oils and grease by turning them into ash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to remove rust and scaling. This crucial step relaxes the cast iron material before precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken bolts and studs are professionally removed to ensure threads are clean, chased, and ready for a seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304116355376,"sku":"CEP59KA12VWHR","price":1899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/5.9Cummins12vWorkhorseCylinderHead_2.png?v=1783557951"},{"product_id":"kawasaki-70z-ii-70z-iii-70z-iv-cylinder-head-workhorse-plus","title":"Kawasaki 70Z-II, 70Z-III \u0026 70Z-IV Cylinder Head Reman - Workhorse Plus (5.9L 12V)","description":"\u003cp\u003eSecure maximum machine uptime and ultimate reliability in the most severe heavy equipment applications. The Workhorse Plus tier cylinder head for Kawasaki 70Z-II, 70Z-III, and 70Z-IV wheel loaders is engineered for operations where equipment failure and field downtime are completely unacceptable. Assembled using a renewed, pressure-tested OEM core and premium internal components, this top-tier cylinder head features extreme-duty upgrades to handle maximum cylinder pressures, intense thermal cycles, and continuous peak-torque demands in brutal operating environments.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Workhorse Tier: Heavy-Duty Valve Springs\u003c\/h3\u003e\n\u003cp\u003eWhile the Workhorse tier introduces a critical O-ringed deck, the Workhorse Plus adds premium, heavy-duty valve springs and upgraded retainers. This severe-duty valvetrain package prevents valve float and spring fatigue during sustained full-load operation and high exhaust backpressures, ensuring absolute valvetrain stability and reliable valve tracking when your loader is pushing its absolute limits.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a premium OEM core casting that has undergone rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision O-Rings:\u003c\/b\u003e To combat severe thermal expansion common in heavy earthmoving, precision O-rings are cut directly into the deck surface. This mechanical modification locks the head gasket securely in place, completely eliminating the risk of combustion leaks under extreme load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNew Valves:\u003c\/b\u003e Equipped with all-new, high-quality intake and exhaust valves, verified for precise seating and clearance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis severe-duty head undergoes an intense inspection and upgrade protocol to guarantee every critical industrial metric is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following the machining process, every cylinder head is pressure-tested at 40 PSI to verify zero structural leaks and absolute casting integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed into the top of the head for superior safety, replacing factory pressed-in freeze plugs that regularly fail during severe thermal spikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes a meticulous final cleaning and rigorous quality control checking. A comprehensive specification sheet is generated, using a profilometer to record:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance incorporates structural updates to resolve common factory vulnerabilities of the 5.9L industrial cylinder head, significantly extending operational lifespan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to strictly meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e The head is custom blueprinted to adjust valve height and valve recession, optimizing geometry for high-stress industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Camshaft Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely machined to remove excessive preload on the lifters, a critical adjustment that dramatically reduces wear and extends the service life of both lifters and the camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with an industrial three-angle profile to optimize engine efficiency and ensure an airtight seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Parts:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur manufacturing protocol begins with an intensive cleaning and stress-relieving process to ensure a flawless casting:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Every single core is subjected to MPI testing to scan for microscopic cracks or subsurface structural imperfections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e Castings undergo a thermal baking process in a specialized furnace to eliminate residual industrial oils and grease by converting them to ash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip away rust and scale. This vital step relaxes the cast iron before any precision machining takes place.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Restoration:\u003c\/b\u003e All broken factory bolts and studs are professionally removed, leaving all holes clean, chased, and ready for head studs or bolts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304123236656,"sku":"CEP59KA12VWPHR","price":3150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/5.9Cummins12vWorkhorseCylinderHead_2.png?v=1783557951"},{"product_id":"kawasaki-70zv-cylinder-head-daily-driver","title":"Kawasaki 70ZV Cylinder Head Reman - Daily Driver (5.9L 24V)","description":"\u003cp\u003eRestore factory-level productivity and cycle times to your Kawasaki 70ZV wheel loader. The Daily Driver tier offers a dependable, direct-fit replacement cylinder head engineered specifically for the industrial QSB 5.9 24-valve engine. Assembled using a renewed, pressure-tested OEM core combined with brand-new, high-quality internal components, this cylinder head guarantees reliable operation, maximum sealing integrity, and extensive service life on the job site. It is the ideal choice for routine fleet maintenance or cost-effective overhauls, correcting factory casting fatigue to get your machine back into the production rotation.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponent Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a premium OEM 24-valve core casting that has passed rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis 24V head features critical structural upgrades, backed by an intense quality control protocol to guarantee every heavy-duty specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following all machining work, every cylinder head is pressure-tested at 40 PSI to confirm zero structural leaks and ensure complete casting integrity before delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for superior leak prevention, replacing standard factory pressed-in plugs that prone to failure during severe thermal cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes a comprehensive final cleaning and strict inspection process. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eRecording this rigorous process ensures you receive a cylinder head that is significantly improved over the original factory design and ready for years of demanding earthmoving operation.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common failure points of the factory 5.9L 24V cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under high-pressure loading.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e We custom blueprint the 24V head to alter valve height and valve recession, achieving maximum durability for high-cycle loader applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely altered to optimize geometry and remove excessive preload. This crucial modification decreases wear and significantly extends the life of the bridges, crossheads, and lifters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize combustion efficiency and ensure a perfect seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to bake away residual industrial oils and grease.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip rust and scale, a crucial step that relaxes the cast iron before any precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken factory bolts and studs are professionally removed to ensure threads are clean, chased, and ready for installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304127824176,"sku":"CEP59KA24VDHR","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7CumminsDDCylinderHead.png?v=1783558046"},{"product_id":"kawasaki-70zv-cylinder-head-workhorse","title":"Kawasaki 70ZV Cylinder Head Reman - Workhorse (5.9L 24V)","description":"\u003cp\u003eMaximize the productivity of your heavy equipment under continuous, demanding work cycles. The Workhorse tier cylinder head for the Kawasaki 70ZV wheel loader (QSB 5.9 24-valve electronic engine) is engineered to withstand long shifts, severe thermal expansion, and sustained high-load operations. Assembled using a renewed, pressure-tested OEM core and brand-new, high-quality internal components, this upgraded cylinder head integrates heavy-duty fixes to handle elevated cylinder pressures and eliminate common field failures on the job site.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Daily Driver: Precision O-Rings\u003c\/h3\u003e\n\u003cp\u003eHigh-cycle material handling and severe industrial environments generate intense internal heat, causing rapid thermal expansion, the leading cause of head gasket blowouts. The Workhorse model tackles this vulnerability by introducing precision-cut O-rings machined directly into the deck surface. This mechanical modification locks the head gasket securely in place, drastically improving sealing under high cylinder pressures and severe operating temperatures to guarantee zero combustion leaks and prevent costly operational downtime.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a premium OEM 24-valve core casting that has passed rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis industrial-grade head features critical durability updates, backed by an intense inspection protocol to guarantee every heavy-duty specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following all machining work, every cylinder head is pressure-tested at 40 PSI to confirm zero leaks and ensure complete casting integrity before delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for superior leak prevention, replacing standard factory pressed-in plugs that prone to failure during severe thermal cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes an extensive final cleaning and strict inspection process. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common failure points of factory 5.9L 24V cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under high-pressure loading.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e We custom blueprint the 24V head to alter valve height and valve recession, achieving maximum durability for high-cycle loader applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely altered to optimize geometry and remove excessive preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the bridges, crossheads, and lifters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize combustion efficiency and ensure a perfect seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to bake away residual industrial oils and grease.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip rust and scale, a crucial step that relaxes the cast iron before any precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken factory bolts and studs are professionally removed to ensure threads are clean, chased, and ready for a seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304150008112,"sku":"CEP59KA24VWHR","price":2295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/5.9CumminsCRWH1.png?v=1783558247"},{"product_id":"kawasaki-70zv-cylinder-head-workhorse-plus","title":"Kawasaki 70ZV Cylinder Head Reman - Workhorse Plus (5.9L 24V)","description":"\u003cp\u003eEliminate head gasket vulnerabilities and valvetrain fatigue under the absolute harshest operating conditions. The Workhorse Plus tier cylinder head for the Kawasaki 70ZV wheel loader (QSB 5.9 24-valve electronic engine) is engineered specifically for severe-duty industrial applications where equipment breakdown and job site downtime are cost-prohibitive. Assembled using a renewed, pressure-tested OEM core and top-tier internal components, this premium head delivers maximum protection against extreme cylinder pressures, punishing thermal expansion, and continuous high-torque duty cycles.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Workhorse Tier: Heavy-Duty Valve Springs\u003c\/h3\u003e\n\u003cp\u003eWhile the Workhorse tier introduces a critical O-ringed deck, the Workhorse Plus upgrades the assembly with premium, heavy-duty valve springs and reinforced retainers. This severe-duty valvetrain configuration prevents valve float and spring fatigue during sustained full-load operation, managing the elevated exhaust backpressures common in industrial turbocharger setups. The result is absolute valvetrain stability and precise tracking when your loader is working at peak operational capacity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a premium OEM 24-valve core casting that has passed rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision O-Rings:\u003c\/b\u003e To combat severe thermal expansion common in high-utilization heavy equipment, precision O-rings are machined directly into the deck surface. This mechanical modification locks the head gasket securely in place, completely eliminating the risk of combustion leaks under extreme loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNew Valves:\u003c\/b\u003e Equipped with all-new, high-quality intake and exhaust valves, verified for precise seating and clearance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis severe-duty head undergoes an intensive inspection and upgrade protocol to guarantee every critical industrial metric is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following the machining process, every cylinder head is pressure-tested at 40 PSI to verify zero structural leaks and absolute casting integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed into the top of the head for superior safety, replacing factory pressed-in freeze plugs that regularly fail during severe thermal spikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes a meticulous final cleaning and rigorous quality control checking. A comprehensive specification sheet is generated, using a profilometer to record:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance incorporates structural updates to resolve common factory vulnerabilities of the 5.9L 24V industrial cylinder head, significantly extending operational lifespan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to strictly meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e The head is custom blueprinted to adjust valve height and valve recession, optimizing geometry for high-stress industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Bridge Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely machined to remove excessive preload on the lifters, a critical adjustment that dramatically reduces wear and extends the service life of the bridges, crossheads, lifters, and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with an industrial three-angle profile to optimize engine efficiency and ensure an airtight seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Parts:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur manufacturing protocol begins with an intensive cleaning and stress-relieving process to ensure a flawless casting:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Every single core is subjected to MPI testing to scan for microscopic cracks or subsurface structural imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e Castings undergo a thermal baking process in a specialized furnace to eliminate residual industrial oils and grease by converting them to ash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip away rust and scale. This vital step relaxes the cast iron before any precision machining takes place.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Restoration:\u003c\/b\u003e All broken factory bolts and studs are professionally removed, leaving all holes clean, chased, and ready for a seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304162033968,"sku":"CEP59KA24VWPHR","price":3150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/5.9CumminsCRWH1.png?v=1783558247"},{"product_id":"kawasaki-6-7l-cylinder-head-daily-driver","title":"Kawasaki 70ZV-2, 70TMV-2, 70Z7 \u0026 80Z7 Cylinder Head Reman - Daily Driver (6.7L)","description":"\u003cp\u003eKeep your late-model Kawasaki heavy equipment running efficiently with an OEM-spec replacement cylinder head built for the rigorous duty cycles of modern earthmoving. The Daily Driver tier provides a standard, high-quality replacement cylinder head for the industrial QSB 6.7 engine utilized across multiple generations of Kawasaki loaders. Assembled using a renewed, pressure-tested OEM core combined with brand-new, high-quality internal components, this cylinder head guarantees reliable operation, proper combustion sealing, and extensive service life on the job site. It delivers standard fleet-grade performance, correcting factory casting stress points to eliminate unnecessary field downtime.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eComponent Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a high-quality OEM core casting that has passed rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis modern 6.7L head features critical durability updates, backed by an intense inspection protocol to guarantee every commercial specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e After all machining work is completed, every cylinder head is pressure-tested at 40 PSI to confirm zero leaks and ensure absolute casting integrity before delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for superior leak prevention, replacing standard factory pressed-in freeze plugs that are prone to popping out during severe thermal expansion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes a comprehensive final cleaning and strict inspection process. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eRoughness Average (RA) Surface Finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cem\u003eRecording this rigorous validation process ensures you receive a cylinder head that is significantly improved over the original factory design and ready for years of demanding loader operation.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common failure points of the factory 6.7L cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under modern high-injection-pressure loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e We custom blueprint the 6.7L head to alter valve height and valve recession, achieving maximum durability for high-cycle industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Crosshead Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely altered to optimize geometry and remove excessive preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the lifters, crossheads, and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize combustion efficiency and ensure a perfect seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to bake away residual industrial oils and grease.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip rust and scale, a crucial step that relaxes the cast iron before any precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken factory bolts and studs are professionally removed to ensure threads are clean, chased, and ready for an effortless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304181629232,"sku":"CEP67KADHR","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7CumminsDDCylinderHead.png?v=1783558046"},{"product_id":"kawasaki-6-7l-cylinder-head-workhorse","title":"Kawasaki 70ZV-2, 70TMV-2, 70Z7 \u0026 80Z7 Cylinder Head Reman - Workhorse (6.7L)","description":"\u003cp\u003eMaximize machine uptime and safeguard your equipment against head gasket failures during extended shifts. The Workhorse tier cylinder head for Kawasaki 70ZV-2, 70TMV-2, 70Z7, and 80Z7 wheel loaders (QSB 6.7 electronic engine) is specifically engineered for sustained heavy-duty material handling, continuous duty cycles, and intense thermal loads. Assembled using a renewed, pressure-tested OEM core and brand-new, premium internal components, this cylinder head integrates heavy-duty structural upgrades to handle elevated cylinder pressures and eliminate common field failures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Daily Driver: Precision O-Rings\u003c\/h3\u003e\n\u003cp\u003eModern high-torque industrial engines operate under intense thermal stress, making rapid thermal expansion the leading cause of head gasket blowouts in production machinery. The Workhorse model eliminates this vulnerability by featuring precision-cut O-rings machined directly into the deck surface. This mechanical modification locks the head gasket securely in place, drastically improving sealing under high cylinder pressures and severe operating temperatures to guarantee zero combustion leaks and prevent costly operational downtime.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a high-quality OEM core casting that has passed rigorous magnetic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNew Wear Components:\u003c\/b\u003e Equipped with all-new, high-quality valve seats, valve seals, and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis industrial-grade head features critical durability updates, backed by an intense inspection protocol to guarantee every commercial specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following all machining work, every cylinder head is pressure-tested at 40 PSI to confirm zero leaks and ensure complete casting integrity before it ever reaches your machine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed in the top of the head for superior leak prevention, replacing standard factory pressed-in plugs that prone to failure during severe thermal cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes an extensive final cleaning and strict inspection process. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications to address common failure points of factory 6.7L cylinder heads, drastically improving field reliability:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under high-pressure loading.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e We custom blueprint the 6.7L head to alter valve height and valve recession, achieving maximum durability for high-cycle loader applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Crosshead Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely altered to remove excessive preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the lifters, crossheads, and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with a precise three-angle profile to optimize combustion efficiency and ensure a perfect seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Components:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur commitment to quality begins before machining, with an intensive cleaning and stress-relieving process to ensure a flawless starting point:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Each core is subjected to MPI testing to thoroughly check for any cracks or subsurface imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e The head undergoes a stress-relieving process in a specialized furnace to bake away residual industrial oils and grease.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip rust and scale, a crucial step that relaxes the cast iron before any precision machining begins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Prep:\u003c\/b\u003e All broken factory bolts and studs are professionally removed to ensure threads are clean, chased, and ready for a seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304195162416,"sku":"CEP67KAWHR","price":2450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7CumminsWHCylinderHead_2.png?v=1783558571"},{"product_id":"kawasaki-6-7l-cylinder-head-workhorse-plus","title":"Kawasaki 70ZV-2, 70TMV-2, 70Z7 \u0026 80Z7 Cylinder Head Reman - Workhorse Plus (6.7L)","description":"\u003cp\u003eEliminate head gasket vulnerabilities and valvetrain fatigue under the most punishing industrial workloads. The Workhorse Plus tier cylinder head for Kawasaki 70ZV-2, 70TMV-2, 70Z7, and 80Z7 wheel loaders (QSB 6.7 electronic engine) is engineered specifically for severe-duty applications, such as high-utilization aggregate handling, heavy excavation, and 24\/7 infrastructure operations, where equipment failure and job site downtime are cost-prohibitive. Assembled using a renewed, pressure-tested OEM core and premium internal components, this top-tier cylinder head features extreme-duty structural upgrades to handle maximum cylinder pressures, intense thermal expansion, and continuous peak-torque demands.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUpgrades Over the Workhorse Tier: Heavy-Duty Valve Springs\u003c\/h3\u003e\n\u003cp\u003eWhile the Workhorse tier introduces a critical O-ringed deck, the Workhorse Plus upgrades the entire assembly with premium, heavy-duty valve springs and reinforced retainers. This severe-duty valvetrain package prevents valve float and spring fatigue during sustained full-load operation, easily managing the elevated exhaust backpressures common in modern industrial turbocharger and Tier 4 emissions setups. The result is absolute valvetrain stability and precise tracking when your loader is working at maximum capacity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePremium Component Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRemanufactured Casting:\u003c\/b\u003e Built from a premium OEM core casting that has undergone rigorous diagnostic testing and is machined to like-new industrial specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision O-Rings:\u003c\/b\u003e To combat the severe thermal expansion common in modern high-torque heavy equipment, precision O-rings are machined directly into the deck surface. This mechanical modification locks the head gasket securely in place, completely eliminating the risk of combustion leaks under extreme operating loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNew Valves:\u003c\/b\u003e Equipped with all-new, high-quality intake and exhaust valves, verified for precise seating and clearance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Heavy-Duty Fixes\u003c\/h3\u003e\n\u003cp\u003eThis severe-duty head undergoes an intensive inspection and upgrade protocol to guarantee every critical industrial metric is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e40 PSI Pressure Testing:\u003c\/b\u003e Following the machining process, every cylinder head is pressure-tested at 40 PSI to verify zero structural leaks and absolute casting integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBlow-Proof Plugs:\u003c\/b\u003e Threaded, blow-proof plugs are installed into the top of the head for superior safety, replacing factory pressed-in freeze plugs that regularly fail during severe thermal spikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinal Quality Control:\u003c\/b\u003e The head undergoes a meticulous final cleaning and rigorous quality control checking. A comprehensive specification sheet is generated, using a profilometer to record:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eValve Recessions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStem Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled Spring Heights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpring Pressures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeeper and Lock Positions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoughness Average (RA) Surface Finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePrecision Machining Process\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance incorporates structural updates to resolve common factory vulnerabilities of the 6.7L industrial cylinder head, significantly extending operational lifespan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimal Sealing Surface:\u003c\/b\u003e The deck is resurfaced to strictly meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket under modern high-injection-pressure loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Train Geometry Alteration:\u003c\/b\u003e The head is custom blueprinted to adjust valve height and valve recession, optimizing geometry for high-stress industrial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLifter and Crosshead Longevity Fix:\u003c\/b\u003e Valve stem heights are precisely machined to remove excessive preload on the lifters, a critical adjustment that dramatically reduces wear and extends the service life of the bridges, crossheads, lifters, and camshaft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOptimized Flow and Sealing:\u003c\/b\u003e Valve seats are cut with an industrial three-angle profile to optimize engine efficiency and ensure an airtight seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eValve Prep:\u003c\/b\u003e Valves are reground and margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAll-New Wear Parts:\u003c\/b\u003e New valve stem seals, valve seats, valve guides, and injector cups are installed across the entire assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMeticulous Cleaning and Prep Process\u003c\/h3\u003e\n\u003cp\u003eOur manufacturing protocol begins with an intensive cleaning and stress-relieving process to ensure a flawless casting:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMagnetic Particle Inspection (MPI):\u003c\/b\u003e Every single core is subjected to MPI testing to scan for microscopic cracks or subsurface structural imperfections common in high-hour castings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThermal Stress Relieving:\u003c\/b\u003e Castings undergo a thermal baking process in a specialized furnace to eliminate residual industrial oils and grease by converting them to ash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaterial Relaxation:\u003c\/b\u003e The head is shot-blasted to strip away rust and scale. This vital step relaxes the cast iron before any precision machining takes place.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThread Restoration:\u003c\/b\u003e All broken factory bolts and studs are professionally removed, leaving all holes clean, chased, and ready for a seamless installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67304215249200,"sku":"CEP67KAWPHR","price":3150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7CumminsWHCylinderHead_2.png?v=1783558571"}],"url":"https:\/\/choateperformance.com\/collections\/kawasaki-equipment-engines-cylinder-heads.oembed","provider":"choateperformance","version":"1.0","type":"link"}