{"title":"Choate | 2020-2024 6.7L Powerstroke Engines","description":"","products":[{"product_id":"6-7l-2020-2024-powerstroke-long-block-daily-driver-ford-diesel-crate-engine-choate-performance","title":"6.7L 2020-2024 Powerstroke Long Block Daily Driver Ford Diesel Crate Engine Choate Performance","description":"\u003cp\u003eThe “Daily Driver” model is specifically designed for spirited daily driving, consumer level towing, and everyday life.\u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes \u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrades Over the Model C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eUpper Oil Pan\u003c\/li\u003e\n\u003cli\u003eLower Oil Pan\u003c\/li\u003e\n\u003cli\u003eFront Cover\u003c\/li\u003e\n\u003cli\u003eRear Cover\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eCore Performance \u0026amp; Power\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output Performance:\u003c\/strong\u003e Rated for \u003cstrong\u003e500+ HP\u003c\/strong\u003e capability, delivering significant power over stock for demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Balanced Rotating Assembly:\u003c\/strong\u003e Precision-balanced components ensure smooth, vibration-free operation and extended bearing life at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Oil Pressure:\u003c\/strong\u003e Proprietary bearing tolerances and machining result in \u003cstrong\u003e5 lbs higher oil pressure\u003c\/strong\u003e at startup compared to competitive builds, ensuring superior lubrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eReliability \u0026amp; Durability Upgrades\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun Bearing Elimination:\u003c\/strong\u003e Machining for correct main and rod bearing clearances paired with upgraded, high-stress bearings prevents catastrophic bearing failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Valve Integrity:\u003c\/strong\u003e Features all-new, upgraded material valves that eliminate the high-heat separation common in OEM exhaust valves, preventing compression loss and piston-to-valve contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Timing Fix:\u003c\/strong\u003e The crank gear is TIG-welded into place, eliminating the risk of the gear spinning, which commonly throws off timing and causes pushrod damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance doesn’t just rebuild engines - we remanufacture them. Each of our engines undergoes extensive, precision machine work to correct OEM flaws and ensure durability and reliability.\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\u003eSteel Connecting Rods\u003c\/li\u003e\n\u003cli\u003eCamshaft\u003c\/li\u003e\n\u003cli\u003eNew Pistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eNew OE Harmonic Balancer\u003c\/li\u003e\n\u003cli\u003eNew Flex Plate (Flywheel is NOT included for manual builds!!!)\u003c\/li\u003e\n\u003cli\u003ePushrods\u003c\/li\u003e\n\u003cli\u003eMain Bearings\u003c\/li\u003e\n\u003cli\u003eRod Bearings\u003c\/li\u003e\n\u003cli\u003eCam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eNew Lifters\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eNew Freeze Plugs\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 Cover and Gasket\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront cover and Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eMiscellaneous\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eNew Water Pump\u003c\/li\u003e\n\u003cli\u003eNew Secondary Pump\u003c\/li\u003e\n\u003cli\u003eNew Oil Pump\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 Valves\u003c\/li\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Valve Seals\u003c\/li\u003e\n\u003cli\u003eThreaded Blow Proof Plugs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Pickup","offer_id":50186795286832,"sku":"CEP67PLD2024","price":19000.0,"currency_code":"USD","in_stock":true},{"title":"Cab \u0026 Chassis","offer_id":50186795319600,"sku":"CEP67PLDC2024","price":19000.0,"currency_code":"USD","in_stock":true},{"title":"Cab \u0026 Chassis W\/ Air Brakes","offer_id":50186795352368,"sku":"CEP67PLDCAB2024","price":19375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7-Powerstroke-Long-Block-Daily-Driver-MO4320-2-scaled.jpg?v=1759940129"},{"product_id":"6-7l-2017-2019-powerstroke-full-running-workhorse-ford-diesel-crate-engine-cab-chassis-choate-performance","title":"6.7L 2017-2024 Powerstroke Full Running Workhorse Ford Diesel Crate Engine Cab \u0026 Chassis Choate Performance","description":"\u003cp\u003eThe “Workhorse” model is specifically designed for the working man who requires maximum durability and reliability for regular heavy hauling and strenuous towing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes \u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrades Over the Daily Driver:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eO-Ringed Heads\u003c\/li\u003e\n\u003cli\u003eBillet Flex Plate\u003c\/li\u003e\n\u003cli\u003eCoated, Fly Cut and Delipped Pistons\u003c\/li\u003e\n\u003cli\u003eStage 2 Cam\u003c\/li\u003e\n\u003cli\u003eChromoly Pushrods\u003c\/li\u003e\n\u003cli\u003eWelded Cam Gear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eCore Performance \u0026amp; Power\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output Performance:\u003c\/strong\u003e Rated for \u003cstrong\u003e600+ HP\u003c\/strong\u003e capability, delivering significant power over stock for demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Balanced Rotating Assembly:\u003c\/strong\u003e Precision-balanced components ensure smooth, vibration-free operation and extended bearing life at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Oil Pressure:\u003c\/strong\u003e Proprietary bearing tolerances and machining result in \u003cstrong\u003e5 lbs higher oil pressure\u003c\/strong\u003e at startup compared to competitive builds, ensuring superior lubrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eReliability \u0026amp; Durability Upgrades\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun Bearing Elimination:\u003c\/strong\u003e Machining for correct main and rod bearing clearances paired with upgraded, high-stress bearings prevents catastrophic bearing failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Valve Integrity:\u003c\/strong\u003e Features all-new, upgraded material valves that eliminate the high-heat separation common in OEM exhaust valves, preventing compression loss and piston-to-valve contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Timing Fix:\u003c\/strong\u003e The crank gear is TIG-welded into place, eliminating the risk of the gear spinning, which commonly throws off timing and causes pushrod damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Head Sealing:\u003c\/strong\u003e O-Ringed heads provide a superior seal, essential for maintaining integrity under high cylinder pressures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2 Valvetrain \u0026amp; Drivetrain:\u003c\/strong\u003e Equipped with a Stage 2 Camshaft and Chromoly Pushrods for enhanced strength, and a Billet Flex Plate for maximum drivetrain integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Drop-In Ready:\u003c\/strong\u003e Ships complete with new water pumps, thermostats, OE harmonic balancer, flywheel, turbocharger, and all necessary sensors for a quick and comprehensive installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance doesn’t just rebuild engines - we remanufacture them. Each of our engines undergoes extensive, precision machine work to correct OEM flaws and ensure durability and reliability.\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. For enhanced durability, o-rings are cut and installed into the deck surface to dramatically improve sealing under high cylinder pressures. 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\u003eSteel Connecting Rods\u003c\/li\u003e\n\u003cli\u003eStage 2 Camshaft\u003c\/li\u003e\n\u003cli\u003eCoated, Flycut, \u0026amp; Delipped Pistons\u003c\/li\u003e\n\u003cli\u003eReman Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eNew OE Harmonic Balancer\u003c\/li\u003e\n\u003cli\u003eChoate Engineering Billet Flex Plate (Flywheel is NOT included for manual builds!!!)\u003c\/li\u003e\n\u003cli\u003eChromoly Pushrods\u003c\/li\u003e\n\u003cli\u003eUpdated Connecting Rods\u003c\/li\u003e\n\u003cli\u003eUpgraded Exhaust Valves\u003c\/li\u003e\n\u003cli\u003eUpgraded Intake Valves\u003c\/li\u003e\n\u003cli\u003eUpgraded HX Performance Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bearings\u003c\/li\u003e\n\u003cli\u003eRod Bearings\u003c\/li\u003e\n\u003cli\u003eCam Bearings\u003c\/li\u003e\n\u003cli\u003eMain Bolts\u003c\/li\u003e\n\u003cli\u003eHead Studs\u003c\/li\u003e\n\u003cli\u003eNew Lifters\u003c\/li\u003e\n\u003cli\u003eRockers\u003c\/li\u003e\n\u003cli\u003eNew Freeze Plugs\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 Cover and Gasket\u003c\/li\u003e\n\u003cli\u003eRear Main Seal\u003c\/li\u003e\n\u003cli\u003eFront cover and Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eCooling System\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e2 Water pumps\u003c\/li\u003e\n\u003cli\u003e4 Thermostats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eSensors and Electronics\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eFuel Rail Pressure Sensor\u003c\/li\u003e\n\u003cli\u003eMap Sensor\u003c\/li\u003e\n\u003cli\u003eCoolant Temp Sensor\u003c\/li\u003e\n\u003cli\u003eIntake Air Temp Sensor\u003c\/li\u003e\n\u003cli\u003eExhaust Back Pressure Sensor\u003c\/li\u003e\n\u003cli\u003eEngine Oil Pressure Switch\u003c\/li\u003e\n\u003cli\u003eCrank Position Sensor\u003c\/li\u003e\n\u003cli\u003eCamshaft Position Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eMiscellaneous\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eTurbocharger Turbo\u003c\/li\u003e\n\u003cli\u003ePickup tube\u003c\/li\u003e\n\u003cli\u003eOil Cooler\u003c\/li\u003e\n\u003cli\u003eFuel Filter\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\u003eO-Rings\u003c\/li\u003e\n\u003cli\u003eNew Valves\u003c\/li\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eNew Valve Seals\u003c\/li\u003e\n\u003cli\u003eThreaded Blow Proof Plugs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"2017-2019 \/ Cab \u0026 Chassis","offer_id":50186797515056,"sku":"CEP67PFWC1719","price":31000.0,"currency_code":"USD","in_stock":true},{"title":"2017-2019 \/ Cab \u0026 Chassis W\/ Air Brakes","offer_id":50186797547824,"sku":"CEP67PFWCAB1719","price":31375.0,"currency_code":"USD","in_stock":true},{"title":"2020-2024 \/ Cab \u0026 Chassis","offer_id":50186797580592,"sku":"CEP67PFWC2024","price":31000.0,"currency_code":"USD","in_stock":true},{"title":"2020-2024 \/ Cab \u0026 Chassis W\/ Air Brakes","offer_id":50186797613360,"sku":"CEP67PFWCAB2024","price":31375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/6.7L-Powerstroke-Full-Runner-Daily-Driver-MO4612-6-1-scaled_34.jpg?v=1759940327"},{"product_id":"6-7l-2020-2024-powerstroke-full-running-daily-driver-ford-diesel-crate-engine-cab-chassis-choate-performance","title":"6.7L 2020-2024 Powerstroke Full Running Daily Driver Ford Diesel Crate Engine Cab \u0026 Chassis Choate Performance","description":"\u003cp\u003eThe “Daily Driver” model is specifically designed for spirited daily driving, consumer level towing, and everyday life.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eCore Performance \u0026amp; Power\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Output Performance:\u003c\/strong\u003e Rated for \u003cstrong\u003e500+ HP\u003c\/strong\u003e capability, delivering significant power over stock for demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Balanced Rotating Assembly:\u003c\/strong\u003e Precision-balanced components ensure smooth, vibration-free operation and extended bearing life at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Oil Pressure:\u003c\/strong\u003e Proprietary bearing tolerances and machining result in \u003cstrong\u003e5 lbs higher oil pressure\u003c\/strong\u003e at startup compared to competitive builds, ensuring superior lubrication.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eReliability \u0026amp; Durability Upgrades\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun Bearing Elimination:\u003c\/strong\u003e Machining for correct main and rod bearing clearances paired with upgraded, high-stress bearings prevents catastrophic bearing failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Valve Integrity:\u003c\/strong\u003e Features all-new, upgraded material valves that eliminate the high-heat separation common in OEM exhaust valves, preventing compression loss and piston-to-valve contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Timing Fix:\u003c\/strong\u003e The crank gear is TIG-welded into place, eliminating the risk of the gear spinning, which commonly throws off timing and causes pushrod damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eIntended Use \u0026amp; Component Specification\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Drop-In Ready:\u003c\/strong\u003e Ships complete with new water pumps, thermostats, OE harmonic balancer, flywheel, turbocharger, and all necessary sensors for a quick and comprehensive installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance doesn’t just rebuild engines - we remanufacture them. 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Each of our engines undergoes extensive, precision machine work to correct OEM flaws and ensure durability and reliability.\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. For enhanced durability, o-rings are cut and installed into the deck surface to dramatically improve sealing under high cylinder pressures. 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. 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