Industrial Injection Stock Remanufactured Cylinder Heads 2001 to 2004 6.6L LB7 Duramax

Product Description

Shop with Blessed Performance for the Industrial Injection Stock Remanufactured Cylinder Heads for your 2001-2004 GM 6.6L LB7 Duramax diesel. These heads are first visually inspected for defects that would make them unusable. After being jet washed in a high-pressure spray cabinet to remove oil and dirt, these heads are then glass beaded to remove carbon. Finally, they are checked by magnafluxing, (cast iron only) or pressure testing to ensure they are good castings. New valve guides feature a High Strength Alloy, Heat Treated iron are then installed. These guides are heat treated to Rockwell 22 “C” Scale, which is far superior to original guide material, including Bronze. An incorporated spiral grove inside the guide hold oils and aids in the lubrication of the valve during engine operation. Guides are then honed to the precise size using a diamond honing mandrel and guide size is then verified using a valve guide bore gauge. These head receive new Premium valve seat inserts made from a Nickel Based Non-Magnetic material that was developed for severe operating conditions. Next the heads are treated with a multi angle valve job to help maximize the airflow in and out of the cylinder heads. Using a Serdi guide and seat machine, a solid carbide straight shank pilot is inserted into the valve guide simulating the real valve stem during the centering process. This ensures the valve seat is finished for a perfect valve to seat match. The head is given a new surface with a Berco milling machine to control the surface finish to accommodate different head gasket types. Finally, these heads are jet washed, dried and assembled with new valve seals and new valve springs. These heads are designed to be a factory replacement that come complete and ready to bolt on.

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