INDUSTRIAL INJECTION PDM-LBZ/LMMSH GM STOCK REMANUFACTURED HEADS FOR 06-10 LBZ LMM 6.6L DURAMAX

The Industrial Injection LBZ/LMM 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. Next 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. 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.

Guides 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.

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.

Next 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.

Using 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.

Finally the head is jet washed dried and assembled with new valve seals and new valve springs.

Features:

• Direct Replacement
• Diamond Honed Guides
• Unshrouded Valves
• High Strength Alloy, Heat Treated iron based valve guides
• Premium valve seat inserts made from a true Nickel Based Non-Magnetic material
• Multi angle valve job
• New valve springs
• Sold in a pair

Note: To receive full core credit we need a good, re-useable pair of cylinder heads. No cracks, warping, or excessive wear.

The Industrial Injection PDM-LBZ/LMMSH GM Stock Remanufactured Heads for the 2006-2010 LBZ LMM 6.6L Duramax are expertly crafted to serve as a reliable factory replacement, ensuring top-notch performance for your engine. Designed for a seamless installation, these heads arrive complete and ready to bolt on, saving time and effort during replacement.

Each head undergoes an intricate cleaning process, beginning with a high-pressure jet wash to eliminate oil and dirt, followed by glass bead blasting to remove stubborn carbon buildup. Rigorous quality control is enforced with magnafluxing or pressure testing to identify any imperfections, ensuring that only the best components are selected for remanufacturing.

Equipped with high-strength alloy, heat-treated iron valve guides, these heads enhance wear resistance significantly compared to original materials, including bronze. The innovative spiral groove design within the guides promotes excellent oil retention and lubrication during operation. Precision is a priority; the guides are diamond honed to meet exact specifications, guaranteeing a consistent finish and optimal performance.

The heads are further enhanced with premium valve seat inserts composed of true nickel-based, non-magnetic material, engineered for extreme conditions. A meticulous multi-angle valve job, executed using cutting-edge machinery, maximizes air flow efficiency, securing a perfect valve-to-seat match.

The remanufactured heads are finished with CBN or diamond tooling, creating a smooth surface tailored to accommodate various head gasket types, including MLS gaskets. Final assembly incorporates new valve seals and springs, ensuring reliability and longevity.

Sold in pairs, these remanufactured heads are an exceptional upgrade for your Duramax engine, delivering the performance, durability, and quality that enthusiasts and professionals alike demand. To qualify for full core credit, ensure that your returned cylinder heads are in reusable condition, free from cracks, warping, or excessive wear.