GM Race Heads For 2004.5-2005 LLY 6.6L Duramax Industrial Injection Idle Kits and Parts " Factory Replacement System

Factory Replacement System

these pumps flow more than enough fuel to support between 400-750 hp

OEM: 53041138AE

Transmission Model: 545RFE

and precision machining

GM Race Heads For 2004.5-2005 LLY 6.6L Duramax Industrial Injection Idle Kits and Parts " Factory Replacement SystemThe Industrial Injection LLY Duramax Race Heads are designed for the racer sled puller in mind. Fully CNC ported heads 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. Valve guides and seats are removed as