{"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 (Cummins QSB6.7 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\u003cli\u003e\n\u003cp\u003e\u003cb\u003eNew Injector Cups:\u003c\/b\u003e Pre-installed new injector cups ensure a permanent, air-tight fuel seal and eliminate the threat of internal coolant contamination.\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 Cummins 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\/products\/kawasaki-6-7l-cylinder-head-workhorse-plus","provider":"choateperformance","version":"1.0","type":"link"}