{"product_id":"industrial-injection-2006-2010-chevrolet-duramax-6-6l-lbz-lmm-stock-reman-heads-pair","title":"Industrial Injection 2006 - 2010 Chevrolet Duramax 6.6L LBZ\/LMM Stock Reman Heads - Pair","description":"\u003cp\u003e\u003cstrong\u003ePDM-LBZ\/LMMSH\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch1 class=\"h2 product-single__title\"\u003eIndustrial Injection LBZ\/LMM Duramax Stock Reman Heads (2006-2010)\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eThe Industrial Injection LBZ\/LMM Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeads are first jet washed in a high pressure spray cabinet to remove oil and dirt, then glass beaded to remove carbon. Next they are checked by magnafluxing, (cast iron only) or pressure testing. They are visually inspected for defects that would make them unusable.\u003c\/p\u003e\n\u003cp\u003eNew High Strength Alloy, Heat Treated iron based valve guides are installed. These guides are heat treated to Rockwell 22 “C” Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze. The guide incorporates a spiral grove inside the guide to hold oil and aid the lubrication of the valve during engine operation.\u003c\/p\u003e\n\u003cp\u003eGuides are then honed (not reamed) to exact size using a diamond honing mandrel. Diamond abrasives allow for consistency of size, surface finish, and bore geometry with no variation from guide to guide. The guide size is then verified using a valve guide bore gauge.\u003c\/p\u003e\n\u003cp\u003eAs needed the head receives new Premium valve seat inserts made from a true Nickel Based Non-Magnetic material that was developed for extreme operating conditions.\u003c\/p\u003e\n\u003cp\u003eNext the head is treated to a multi angle valve job to help maximize the flow of air in and out of the head. This is accomplished using a Serdi 100 guide and seat machine. Serdi uses a solid carbide straight shank pilot. When inserted into the valve guide, it simulates the real valve stem during the centering process. This guarantees the valve seat is finished for a perfect valve to seat match.\u003c\/p\u003e\n\u003cp\u003eUsing CBN or Diamond tooling the head is given a new surface. With our berco milling machine we can control the surface finish to accommodate different head gasket types. For example MLS head gaskets require a very smooth surface finish.\u003c\/p\u003e\n\u003cp\u003eFinally the head is jet washed dried and assembled with new valve seals and new valve springs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect Replacement\u003c\/li\u003e\n\u003cli\u003eDiamond Honed Guides\u003c\/li\u003e\n\u003cli\u003eUnshrouded Valves\u003c\/li\u003e\n\u003cli\u003eHigh Strength Alloy, Heat Treated iron based valve guides\u003c\/li\u003e\n\u003cli\u003ePremium valve seat inserts made from a true Nickel Based Non-Magnetic material\u003c\/li\u003e\n\u003cli\u003eMulti angle valve job\u003c\/li\u003e\n\u003cli\u003eNew valve springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSold in a pair\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":42988353519683,"sku":"PDM-LBZ\/LMMSH","price":2105.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/0456\/5571\/files\/duramax_2_heads_1800x1800_d427c30e-bead-4fd3-baf5-8088d0f45dcd.webp?v=1771435002","url":"https:\/\/gumotorsport.com\/en-us\/products\/industrial-injection-2006-2010-chevrolet-duramax-6-6l-lbz-lmm-stock-reman-heads-pair","provider":"GUMOTORSPORT","version":"1.0","type":"link"}