{"title":"Duramax Cylinder Heads","description":null,"products":[{"product_id":"gm-stock-remanufactured-heads-for-06-10-lbz-lmm-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Stock Remanufactured Heads For 06-10 LBZ LMM 6.6L Duramax","description":"\u003cp\u003eThe Industrial Injection LBZ\/LMM Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on.\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 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737626525845,"sku":"PDM-LBZ\/LMMSH-GHJV","price":1745.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LBZ_LMMSH-GHJV.jpg?v=1787002621"},{"product_id":"gm-remanufactured-stock-heads-for-01-04-lb7-duramax-industrial-injection","title":"Industrial Injection GM Remanufactured Stock Heads For 01-04 LB7 Duramax","description":"\u003cp\u003eThe Industrial Injection LB7 Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on.\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 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737626624149,"sku":"PDM-LB7SH-GHJV","price":1710.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LB7SH-GHJV.jpg?v=1787002628"},{"product_id":"gm-remanufactured-stock-heads-for-11-16-lml-6-0l-duramax-industrial-injection","title":"Industrial Injection GM Remanufactured Stock Heads For 11-16 LML 6.0L Duramax","description":"\u003cp\u003eThe Industrial Injection LML Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on.Heads are first jet washed in a high pressure spray cabinet to remove oil and dirt, then glass beaded to remove carbon.\u003c\/p\u003e\n\u003cp\u003eNext they are checked by magnafluxing, (cast iron only) or pressure testing. They are visually inspected for defects that would make them unusable. New High Strength Alloy, Heat Treated iron based valve guides are installed.\u003c\/p\u003e\n\u003cp\u003eThese guides are heat treated to Rockwell 22 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.\u003c\/p\u003e\n\u003cp\u003eThe guide size is then verified using a valve guide bore gauge. As 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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. Using CBN or Diamond tooling the head is given a new surface.\u003c\/p\u003e\n\u003cp\u003eWith 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.Finally 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\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737640583317,"sku":"PDM-LMLSH-GHJV","price":1648.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LMLSH-GHJV.jpg?v=1787003411"},{"product_id":"gm-remanufactured-heads-for-2004-5-2005-lly-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Remanufactured Heads For 2004.5-2005 LLY 6.6L Duramax","description":"\u003cp\u003eThe Industrial Injection LLY Duramax Stock Remanufactured Heads are designed to be a factory replacement. Complete ready to bolt on.\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 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\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e These heads are converted from LBZ\/LMM heads because of the lack of quality LLY head cores. You will need to use LBZ\/LMM Glow plugs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737640681621,"sku":"PDM-LLYSH-GHJV","price":1648.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LLYSH-GHJV.jpg?v=1787003418"},{"product_id":"gm-race-heads-for-06-10-lbz-lmm-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Race Heads For 06-10 LBZ LMM 6.6L Duramax","description":"\u003cp\u003eThe Industrial Injection LBZ\/LMM Duramax Race Heads are designed for the racer \/ sled puller in mind. Fully CNC ported heads complete ready to bolt on.\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. Valve guides and seats are removed as needed for porting.\u003c\/p\u003e\n\u003cp\u003ePort development is accomplished using a superflow 600 flow bench with a computer recording all flow measurements.\u003c\/p\u003e\n\u003cp\u003eMany things are considered when designing a cylinder head Port; air flow is only one of the things to think about. Another major concern is port wall thickness.\u003c\/p\u003e\n\u003cp\u003eAnyone can get a head to produce high flow numbers, but if doing so leaves the port wall to thin the casting will crack. High performance Diesel heads are more prone to crack because of the thermal shock experienced by excessive intermittent or long term exhaust temperatures.\u003c\/p\u003e\n\u003cp\u003eThe porting is then preformed using a new 5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same. This helps balance the power that each cylinder produces, making tuning easier.\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 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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 performance valve springs.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cp\u003e5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting\u003c\/p\u003e\n\u003cul\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\u003ePerformance 95LB valve springs\u003c\/li\u003e\n\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737646907541,"sku":"PDM-LBZ\/LMMRH-GHJV","price":3876.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LBZ_LMMRH-GHJV.jpg?v=1787003637"},{"product_id":"gm-race-heads-for-01-04-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Race Heads For 01-04 6.6L Duramax","description":"\u003cp\u003eThe Industrial Injection LB7 Duramax Race Heads are designed for the racer \/ sled puller in mind. Fully CNC ported heads with screw in torque lock injector cups complete ready to bolt on.\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. Valve guides and seats are removed as needed for porting.\u003c\/p\u003e\n\u003cp\u003ePort development is accomplished using a superflow 600 flow bench with a computer recording all flow measurements.\u003c\/p\u003e\n\u003cp\u003eMany things are considered when designing a cylinder head Port; air flow is only one of the things to think about. Another major concern is port wall thickness.\u003c\/p\u003e\n\u003cp\u003eAnyone can get a head to produce high flow numbers, but if doing so leaves the port wall to thin the casting will crack. High performance Diesel heads are more prone to crack because of the thermal shock experienced by excessive intermittent or long term exhaust temperatures.\u003c\/p\u003e\n\u003cp\u003eThe porting is then preformed using a new 5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same. This helps balance the power that each cylinder produces, making tuning easier.\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 Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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 performance valve springs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting\u003c\/li\u003e\n\u003cli\u003eScrew in injector torque lock cups\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\u003ePeformance 95LB valve springs\u003c\/li\u003e\n\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737656377493,"sku":"PDM-LB7RH-GHJV","price":5447.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LB7RH-GHJV.jpg?v=1787004398"},{"product_id":"gm-stock-cylinder-heads-for-01-04-lb7-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Stock Cylinder Heads For 01-04 LB7 6.6L Duramax","description":"\u003cp\u003eIndustrial Injection is proud to offer Brand New LB7 Duramax Stock Cylinder Heads for your 2001-2004 GM Duramax. These brand new GM OE cylinder heads have a reinforced casting to make them more durable and help eliminate cracking.\u003c\/p\u003e\n\u003cp\u003eEach head has been pressure tested and comes fully loaded and assembled with new factory injector cups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand New GM Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eReinforced Casting To Help Eliminate Cracking\u003c\/li\u003e\n\u003cli\u003eNew OE Injector Cups Installed\u003c\/li\u003e\n\u003cli\u003ePressure Tested\u003c\/li\u003e\n\u003cli\u003eFully Loaded and Assembled\u003c\/li\u003e\n\u003cli\u003eSold in Pairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737675481237,"sku":"PDM-LB7SHN-GHJV","price":2507.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LB7SHN-GHJV.jpg?v=1787005354"},{"product_id":"gm-race-heads-for-11-16-lml-6-0l-duramax-industrial-injection","title":"Industrial Injection GM Race Heads For 11-16 LML 6.0L Duramax","description":"\u003cp\u003eThe Industrial Injection LML Duramax Race Heads are designed for the racer \/ sled puller in mind. Fully CNC ported heads complete ready to bolt on.\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. Valve guides and seats are removed as needed for porting.\u003c\/p\u003e\n\u003cp\u003ePort development is accomplished using a superflow 600 flow bench with a computer recording all flow measurements.\u003c\/p\u003e\n\u003cp\u003eMany things are considered when designing a cylinder head Port; air flow is only one of the things to think about. Another major concern is port wall thickness.\u003c\/p\u003e\n\u003cp\u003eAnyone can get a head to produce high flow numbers, but if doing so leaves the port wall to thin the casting will crack. High performance Diesel heads are more prone to crack because of the thermal shock experienced by excessive intermittent or long term exhaust temperatures.\u003c\/p\u003e\n\u003cp\u003eThe porting is then preformed using a new 5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same. This helps balance the power that each cylinder produces, making tuning easier.\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 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.\u003c\/p\u003e\n\u003cp\u003eSerdi 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 performance valve springs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting\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\u003ePerformance 130LB valve springs\u003c\/li\u003e\n\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737676988565,"sku":"PDM-LMLRH-GHJV","price":4025.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LMLRH-GHJV.jpg?v=1787005456"},{"product_id":"gm-race-heads-for-2004-5-2005-lly-6-6l-duramax-industrial-injection","title":"Industrial Injection GM Race Heads For 2004.5-2005 LLY 6.6L Duramax","description":"\u003cp\u003eThe Industrial Injection LLY Duramax Race Heads are designed for the racer \/ sled puller in mind. Fully CNC ported heads complete ready to bolt on.\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. Valve guides and seats are removed as needed for porting.\u003c\/p\u003e\n\u003cp\u003ePort development is accomplished using a superflow 600 flow bench with a computer recording all flow measurements.\u003c\/p\u003e\n\u003cp\u003eMany things are considered when designing a cylinder head Port; air flow is only one of the things to think about. Another major concern is port wall thickness.\u003c\/p\u003e\n\u003cp\u003eAnyone can get a head to produce high flow numbers, but if doing so leaves the port wall to thin the casting will crack. High performance Diesel heads are more prone to crack because of the thermal shock experienced by excessive intermittent or long term exhaust temperatures.\u003c\/p\u003e\n\u003cp\u003eThe porting is then preformed using a new 5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting. CNC porting brings unparalleled accuracy to head porting with each port flowing the same. This helps balance the power that each cylinder produces, making tuning easier.\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 Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eWhen 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 performance valve springs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5 Axis CNC Cylinder Head Porting Machine with CAD\/CAM software specifically designed for cylinder head porting\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\u003ePeformance 95LB valve springs\u003c\/li\u003e\n\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737677185173,"sku":"PDM-LLYRH-GHJV","price":4025.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LLYRH-GHJV.jpg?v=1787005464"},{"product_id":"gm-remanufactured-stock-heads-for-01-04-lb7-duramax-with-torque-lock-caps-industrial-injection","title":"Industrial Injection GM Remanufactured Stock Heads For 01-04 LB7 Duramax With Torque Lock Caps","description":"\u003cp\u003eThe Industrial Injection LB7 Duramax Stock Remanufactured Heads with Torque Lock Cups are designed to be an upgraded factory replacement. Complete ready to bolt on.\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 Scale, which produces the ultimate in wear resistance. This is far superior to original guide material, including Bronze.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eWhen inserted into the valve guide, it simulates the real valve stem during the centering process.\u003c\/p\u003e\n\u003cp\u003eThis 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\u003cli\u003eTorque Lock Cups Installed\u003c\/li\u003e\n\u003cli\u003eSold in a pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e To receive full core credit we need a good, reusable pair of cylinder heads. No cracks, warping, or excessive wear.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Default Title","offer_id":47737677250709,"sku":"PDM-LB7SH-TL-GHJV","price":2550.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/PDM-LB7SH-TL-GHJV.jpg?v=1787005471"},{"product_id":"ppe-2004-5-2010-gm-6-6l-duramax-cast-iron-cylinder-head-one-lly-lbz-lmm","title":"PPE 2004.5-2010 GM 6.6L Duramax Cast Iron Cylinder Head (One) LLY\/LBZ\/LMM","description":"\u003cp\u003e50 States Emissions Legal (E.O. D-701-38). The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and\/or cracking in high-performance applications where excessive heat is introduced.\u003c\/p\u003e \u003cp\u003ePPE's new Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance, which prolongs the cylinder head's lifespan significantly. PPE Cylinder Head also shares the same heat expansion rate as the stock cast-iron cylinder block no more blown head gaskets.\u003c\/p\u003e \u003cp\u003eEach head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers\/locators enable faster response during higher RPMs and eliminate valve float. Powder metal valve seats provide superior wear and heat resistance. The denser and stiffer material properties from the cast-iron construction also significantly reduce engine clatter.\u003c\/p\u003e \u003cp\u003eWhether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.\u003c\/p\u003e \u003cp\u003eNote 1: Requires the use of LBZ\/LMM glow plugs on LLY engines\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDuramax Iron Heads Upgrade:\u003c\/strong\u003e Diesel World\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":47847843233941,"sku":"110100103-HFTD","price":1349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/110100103-HFTD.jpg?v=1787849804"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-w-cupless-injector-bore-for-2001-2004-lb7-fpe-61-10001-p-cl","title":"Fleece Freedom Series Duramax Cylinder Head w\/ Cupless Injector Bore for 2001-2004 LB7 - FPE-61-10001-P-CL","description":"\u003cp\u003eALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. Features Cupless injector bore - no injector cups to leak again ever! New aluminum casting New valves, valve guides, new springs, and new valve seals Pressure and leak tested Precision ground valves with a 45 degree angle CNC cut, multi-angle valve job Installation Notes We recommend using GM 12637788 head gasket (Grade C, Right) and GM 12637785 head gasket (Grade C, Left)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCupless injector bore - no injector cups to leak again ever!\u003c\/li\u003e\n\u003cli\u003eNew aluminum casting\u003c\/li\u003e\n\u003cli\u003eNew valves, valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eCNC cut\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2001-2004 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\/FPE-LB7-63\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47847862304917,"sku":"FQWW-FPE-61-10001-P-CL","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/Cupless_LB7-Head_graphic_55a2aa4d-7397-417c-99ef-5d0201af02eb.jpg?v=1787852609"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2011-2016-lml-driver-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2011-2016 LML (Driver Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2011-2016 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849014657173,"sku":"FQWW-FPE-61-10004-D","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10004-D-F1.png?v=1787870163"},{"product_id":"ppe-01-04-gm-6-6l-duramax-ported-cast-iron-cylinder-head-one-lb7","title":"PPE 01-04 GM 6.6L Duramax Ported Cast Iron Cylinder Head (One) LB7","description":"\u003cp\u003eThe OEM Duramax cast-aluminum cylinder heads fall short over time - the differing heat expansion rates between the cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and\/or cracking in high-performance applications where excessive heat is introduced.\u003c\/p\u003e \u003cp\u003ePPE's new ported LB7 Cast Iron Cylinder Head is the ultimate upgrade for your Duramax engine, eliminating any concerns about head gaskets or cracking. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers superior fatigue strength, heat resistance, and creep resistance, significantly prolonging its lifespan.\u003c\/p\u003e \u003cp\u003eThe cast-iron material also shares the same heat expansion rate as the stock engine block, eliminating blown head gaskets. Additionally, the PPE Cylinder Head features cast-in fuel injector cups, solving the OEM injector cup leaking issue.\u003c\/p\u003e \u003cp\u003eOur CNC porting process improves airflow, enhancing power, fuel efficiency, and throttle response while reducing engine stress and turbo lag. By smoothing the ports and maintaining wall thickness, these heads provide increased horsepower and torque without sacrificing reliability.\u003c\/p\u003e \u003cp\u003eTailored to each specific head, the CNC machining compensates for casting variations, ensuring consistent and optimized airflow dynamics. Whether you have a damaged aluminum cylinder head or seek better reliability and longevity for your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThe valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created. For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (Plus 0.006 inch to Plus 0.008 inch) oversized exhaust valve seats (Nominal size 34mm).\u003c\/li\u003e \u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":47849021145237,"sku":"110100111-HFTD","price":1709.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/110100111_11-HFTD.jpg?v=1787848558"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-w-cupless-injector-bore-for-2001-2004-lb7-fpe-61-10001-d-cl","title":"Fleece Freedom Series Duramax Cylinder Head w\/ Cupless Injector Bore for 2001-2004 LB7 - FPE-61-10001-D-CL","description":"\u003cp\u003eALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. Features Cupless injector bore - no injector cups to leak again ever! New aluminum casting New valves, valve guides, new springs, and new valve seals Pressure and leak tested Precision ground valves with a 45 degree angle CNC cut, multi-angle valve job Installation Notes We recommend using GM 12637788 head gasket (Grade C, Right) and GM 12637785 head gasket (Grade C, Left)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCupless injector bore - no injector cups to leak again ever!\u003c\/li\u003e\n\u003cli\u003eNew aluminum casting\u003c\/li\u003e\n\u003cli\u003eNew valves, valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eCNC cut\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2001-2004 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\/FPE-LB7-63\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849040150677,"sku":"FQWW-FPE-61-10001-D-CL","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/Cupless_LB7-Head_graphic.jpg?v=1787848520"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2017-2023-l5p-driver-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2017-2023 L5P (Driver Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 2017 - 2023 L5P 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. No core charge! Features Re-manufactured OE casting New valves, valve guides, springs, and valve seals Pressure and leak tested Multi-angle valve job Installation Notes: We recommend using GM head gasket (Grade C, 12727486)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRe-manufactured OE casting\u003c\/li\u003e\n\u003cli\u003eNew valves, valve guides, springs, and valve seals Pressure and leak tested\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003cli\u003eInstallation Notes: We recommend using GM head gasket (Grade C, 12727486)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2017-2023 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-HAR-L5P-INJ-PT\/FPE-L5P-FFBA-1719\/FPE-L5P-MAP-SPR\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849260089493,"sku":"FQWW-FPE-61-10014-D","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10014-D-F1.png?v=1787870960"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2006-2010-lbz-lmm-driver-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2006-2010 LBZ\/LMM (Driver Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2006-2010 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849261957269,"sku":"FQWW-FPE-61-10003-D","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10003-F1.png?v=1787870959"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2011-2016-lml-passenger-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2011-2016 LML (Passenger Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2011-2016 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849557885077,"sku":"FQWW-FPE-61-10004-P","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10004-P-F1.png?v=1787871280"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2004-5-2005-lly-driver-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2004.5-2005 LLY (Driver Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2004.5-2005 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849566339221,"sku":"FQWW-FPE-61-10002-D","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10002-D-F1.png?v=1787871280"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2017-2023-l5p-passenger-side-chevy-gmc-2017-2023-6-6l-fpe-61-10014-p","title":"Fleece Freedom Series Duramax Cylinder Head for 2017-2023 L5P (Passenger Side) - Chevy\/GMC 2017-2023 6.6L - FPE-61-10014-P","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 2017 - 2023 L5P 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. No core charge! Features Re-manufactured OE casting New valves, valve guides, springs, and valve seals Pressure and leak tested Multi-angle valve job Installation Notes: We recommend using GM head gasket (Grade C, 12727486)\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRe-manufactured OE casting\u003c\/li\u003e\n\u003cli\u003eNew valves, valve guides, springs, and valve seals Pressure and leak tested\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003cli\u003eInstallation Notes: We recommend using GM head gasket (Grade C, 12727486)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2017-2023 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-HAR-L5P-INJ-PT\/FPE-L5P-FFBA-1719\/FPE-L5P-MAP-SPR\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849604743317,"sku":"FQWW-FPE-61-10014-P","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10014-P-F1.png?v=1787871639"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2004-5-2005-lly-passenger-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2004.5-2005 LLY (Passenger Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2004.5-2005 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849610870933,"sku":"FQWW-FPE-61-10002-P","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10002-P-T2.png?v=1787871638"},{"product_id":"fleece-freedom-series-duramax-cylinder-head-for-2006-2010-lbz-lmm-passenger-side","title":"Fleece Freedom Series Duramax Cylinder Head for 2006-2010 LBZ\/LMM (Passenger Side)","description":"\u003cp\u003eIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNew valve guides, new springs, and new valve seals\u003c\/li\u003e\n\u003cli\u003ePressure and leak tested\u003c\/li\u003e\n\u003cli\u003ePrecision ground stock valves with a 45 degree angle\u003c\/li\u003e\n\u003cli\u003eMulti-angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e 2006-2010 GM 2500-3500 Duramax 6.6L\u003c\/p\u003e\u003cp\u003eRecommended Cross Sell Skus - FPE-BRAB-D1\/FPE-DUR-S2-PROD\u003c\/p\u003e","brand":"Fleece Performance","offers":[{"title":"Default Title","offer_id":47849695969429,"sku":"FQWW-FPE-61-10003-P","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/FPE-61-10003-F1_1ea54ab1-e838-4642-9336-cf3481c54ba6.png?v=1787870959"},{"product_id":"ppe-2001-2004-gm-6-6l-duramax-cast-iron-cylinder-head-one-lb7","title":"PPE 2001-2004 GM 6.6L Duramax Cast Iron Cylinder Head (One) LB7","description":"\u003cp\u003e50 States Emissions Legal (E.O. D-701-38) The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and\/or cracking in high-performance applications where excessive heat is introduced.\u003c\/p\u003e \u003cp\u003ePPE's new LB7 Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, and heat and creep resistance, which prolongs the cylinder head's lifespan significantly.\u003c\/p\u003e \u003cp\u003ePPE Cylinder Heads also share the same heat expansion rate as the stock cast-iron cylinder block no more blown head gaskets. PPE LB7 Cylinder Heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue.\u003c\/p\u003e \u003cp\u003eEach head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers\/locators enable faster response during higher RPMs and eliminate valve float. Powder metal valve seats provide superior wear and heat resistance. The denser and stiffer material properties from the cast-iron construction also significantly reduce engine clatter.\u003c\/p\u003e \u003cp\u003eWhether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.\u003c\/p\u003e \u003cp\u003eDuramax Iron Heads Upgrade: Diesel World\u003c\/p\u003e \u003cp\u003eUnboxing PPEs new Duramax cylinder heads!: LinCo Diesel Performance\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":47849707077781,"sku":"110100101-HFTD","price":1349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/110100101-HFTD.jpg?v=1787873308"},{"product_id":"ppe-2011-2016-gm-6-6l-duramax-cast-iron-cylinder-head-one-lml","title":"PPE 2011-2016 GM 6.6L Duramax Cast Iron Cylinder Head One LML","description":"\u003cp\u003e50 States Emissions Legal (E.O. 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Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance, which prolongs the cylinder head's lifespan significantly.\u003c\/p\u003e \u003cp\u003ePPE Cylinder Head also shares the same heat expansion rate as the stock cast-iron cylinder block - no more blown head gaskets.\u003c\/p\u003e \u003cp\u003eEach head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers\/locators enable faster response during higher RPMs and eliminate valve float.\u003c\/p\u003e \u003cp\u003ePowder metal valve seats provide superior wear and heat resistance. 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Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created.\u003c\/p\u003e \u003cp\u003eFor those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006 Inch to +0.008 inch) oversized exhaust valve seats (Nominal size 34mm).\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":47849708978325,"sku":"110100105-HFTD","price":1349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/110100105-HFTD.jpg?v=1787873381"},{"product_id":"ppe-cylinder-head-one-cast-iron-gm-6-6l-duramax-2004-5-2010-lly-lbz-lmm-ported","title":"PPE Cylinder Head (One) Cast Iron - GM 6.6L Duramax 2004.5-2010 LLY\/LBZ\/LMM Ported","description":"\u003cp\u003eThe OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing, and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and\/or cracking in high-performance applications where excessive heat is introduced.\u003c\/p\u003e \u003cp\u003ePPE’s new ported Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance, which prolongs the cylinder head’s lifespan significantly. PPE Cylinder Head also shares the same heat expansion rate as the stock cast-iron cylinder block - no more blown head gaskets.\u003c\/p\u003e \u003cp\u003eOur CNC porting process improves airflow, enhancing power, fuel efficiency, and throttle response while reducing engine stress and turbo lag. By smoothing the ports and maintaining wall thickness, these heads provide increased horsepower and torque without sacrificing reliability. Tailored to each specific head, the CNC machining compensates for casting variations, ensuring consistent and optimized airflow dynamics. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e The valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created. For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006 inch to +0.008 inch) oversized exhaust valve seats (Nominal size 34mm).\u003c\/p\u003e \u003cp\u003eRequires the use of LBZ\/LMM glow plugs on LLY engines\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSpecially alloyed gray cast iron liquid-cooled cylinder head\u003c\/li\u003e \u003cli\u003e5-Axis CNC ported intake and exhaust ports for smooth, unrestricted airflow\u003c\/li\u003e \u003cli\u003eIncreased thermal efficiency compared to aluminum heads\u003c\/li\u003e \u003cli\u003eReduced noise and vibration, better ride\u003c\/li\u003e \u003cli\u003eEliminates head gasket scrubbing issue (blown head gasket)\u003c\/li\u003e \u003cli\u003eHigher fatigue strength and heat resistance\u003c\/li\u003e \u003cli\u003ePremium 21-4N, Stellite-reinforced exhaust valves\u003c\/li\u003e \u003cli\u003eFully nitridated valves, better abrasion resistance\u003c\/li\u003e \u003cli\u003eReady to install - comes with all valvetrain components, rocker arm dowels, and freeze plugs\u003c\/li\u003e \u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":47849709764757,"sku":"110100113-HFTD","price":1709.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0593\/0585\/3077\/files\/110100113_21-HFTD.jpg?v=1787873300"}],"url":"https:\/\/dieselproof.com\/collections\/duramax-cylinder-heads.oembed","provider":"Diesel Proof","version":"1.0","type":"link"}