{"product_id":"cep64dhn","title":"6.4 Powerstroke Daily Driver Cylinder Head New","description":"\u003cp\u003eThis complete cylinder head is assembled using a combination of new OEM and high-quality aftermarket components, guaranteeing reliable operation and longevity. This listing is for 1 cylinder head.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Casting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt from a brand-new, non-remanufactured casting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Valves:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with new, high-quality intake and exhaust valves that are inspected for proper seating and clearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Valve Springs and Retainers:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes brand-new valve springs matched to the engine's requirements and durable retainers and locks for secure operation, even at higher RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Injector Cups:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePre-installed new injector cups for proper fuel sealing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eKey Features and Fixes\u003c\/h3\u003e\n\u003cp\u003eThis head features key performance and durability upgrades, backed by an intense inspection protocol to guarantee every specification is met.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Testing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAfter machining, every cylinder head is pressure tested at 40 PSI to confirm zero leaks and ensure casting integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlow-Proof Plugs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThreaded, blow-proof plugs are installed in the top of the head for increased security and leak prevention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Quality Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe head undergoes a final, extensive cleaning and quality control inspection. A detailed sign-off sheet is generated, measuring and recording critical specifications using a profilometer, including:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eValve Recessions\u003c\/li\u003e\n\u003cli\u003eStem Heights\u003c\/li\u003e\n\u003cli\u003eInstalled Spring Heights\u003c\/li\u003e\n\u003cli\u003eSpring Pressures\u003c\/li\u003e\n\u003cli\u003eKeeper and Lock Positions\u003c\/li\u003e\n\u003cli\u003eRA Recording\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis rigorous process ensures you receive a head that is significantly improved over the original and ready for years of demanding diesel operation.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eMachining Process:\u003c\/h3\u003e\n\u003cp\u003eChoate Engineering Performance has incorporated critical modifications and features to address common failure points of the factory 6.4L Powerstroke cylinder heads, drastically improving reliability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Sealing Surface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe deck is resurfaced to meet or exceed OEM specifications for Roughness Average (Ra), maximizing the sealing surface performance for the head gasket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Train Geometry Alteration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe custom blueprint the head to alter valve height and valve recession, achieving maximum reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifter Longevity Fix:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eValve stem heights are precisely altered to remove preload on the hydraulic lifter. This crucial modification decreases wear and significantly extends the life of the lifters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eValve seats are cut with a three-angle profile to optimize airflow and ensure proper sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Prep:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eValves are reground and their margins are meticulously inspected to guarantee proper sealing against the new seats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Components:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNew casting, valve stem seals, valve seats, and valve guides are installed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":51196648849692,"sku":"CEP64DHN-KLZM","price":1275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0092\/1619\/6665\/files\/28_0_1000x_d6969a4f-f41c-4e98-8a27-40b24e2c01fb.webp?v=1771541450","url":"https:\/\/holdersdiesel.com\/products\/cep64dhn","provider":"Holders Diesel Performance","version":"1.0","type":"link"}