{"product_id":"ceplmmwhr","title":"LMM Workhorse Cylinder Head Reman Choate Performance","description":"\u003cp\u003eThis upgraded 6.6 Duramax Diesel engine cylinder head is a great choice for an improvement over stock. This listing is for 1 Cylinder Head.\u003c\/p\u003e\n\u003cp\u003e6.6 Duramax LMM Workhorse Cylinder Head Reman\u003cbr\u003eChoate Part Number: CEPLMMWHR\u003c\/p\u003e\n\u003cp\u003eOE Part number: 98025702, 1290608\u003cbr\u003eFitment: 2007,2007.5, 2008, 2009, 2010\u003c\/p\u003e\n\u003cp\u003eManufacturer: Choate Engineering Performance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6.6 LMM Workhorse Duramax Remanufactured Diesel Engine Cylinder Heads Include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResurfaced Cylinder Head To Meet Or Exceed OEM Specification of Ra or Roughness Average, which maximizes sealing surface performance.\u003c\/li\u003e\n\u003cli\u003eUsed Cast\u003c\/li\u003e\n\u003cli\u003eNew Valve Stem Seals\u003c\/li\u003e\n\u003cli\u003eNew Valve Guides\u003c\/li\u003e\n\u003cli\u003eRegrind Valves and inspect margins for proper sealing.\u003c\/li\u003e\n\u003cli\u003eCut seats with 3 angles and optimize flow.\u003c\/li\u003e\n\u003cli\u003eMachined O'ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCleaning Process:\u003c\/strong\u003e\u003cbr\u003eOnce the 6.6 Duramax Diesel Engine cylinder head passes our rigorous inspection for cracks and imperfections through MPI testing, it will go through a stress relieving process in a furnace to turn any grease and oil into ash.\u003c\/p\u003e\n\u003cp\u003eThen we shot blast it in our cabinet to remove any rust and scaling. This will also relax the material before machining to our specifications.\u003cbr\u003eAfter this, we check it for any broken bolts or studs, and remove them.\u003c\/p\u003e\n\u003cp\u003eOnce it has met our stringent standards, it will then start through the machining process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMachining Process:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur heads are blueprinted to proprietary valve train geometry, to alter valve height and valve recession for maximum reliability and longevity. Our Valve stem heights are altered to remove preload on the lifter and decrease the wear and help the lifter live a long life.\u003c\/p\u003e\n\u003cp\u003eWe O-ring our Workhorse heads to eliminate factory head gasket issues. A receiver groove is machined into the deck surface, and a USA-made stainless steel wire is pressed in, applying extra pressure to the MLS gaskets and sealing combustion pressure.\u003c\/p\u003e\n\u003cp\u003eThe durable, reusable high-carbon stainless wire works with standard head gaskets and requires no special block machining-just a clean, dry, flat deck surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection Process:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnce our machining processes are complete, we pressure test the 6.6 Duramax cylinder heads with 40 PSI pressure to make sure there are no leaks. Then we send it through another extensive cleaning, quality control inspection and sign off sheet that will include all specs of the heads.\u003cbr\u003e\u003cstrong\u003eWe measure the following specs by use of profilometer:\u003c\/strong\u003e\u003c\/p\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\u003cp\u003e\u003cstrong\u003eTech Tip:\u003c\/strong\u003e\u003cbr\u003eBe sure that the surface of the block is inspected and cleaned prior to installation of this Cylinder Head.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":51196650651932,"sku":"CEPLMMWHR-KLZM","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0092\/1619\/6665\/files\/CEPLMMWHR-KLZM.png?v=1738708077","url":"https:\/\/holdersdiesel.com\/products\/ceplmmwhr","provider":"Holders Diesel Performance","version":"1.0","type":"link"}