2001-2004 GM 6.6L LB7 Duramax Overhaul Kits & Long Blocks

Roughly a 14 week lead time, Contact to Confirm Lead Time!DFC Diesel Rebuilders prides itself in being the highest quality product on the market. This is why we can back our engines with a 5 year 100,000 Mile warranty that we stand behind.Our engines have been re-manufactured to factory sp..

Roughly 14 week lead time, Contact to Confirm Lead Time!STREET SERIESOur Street Series of engines are DFC’s flagship product. Built for work trucks, daily drivers and the diesel enthusiast in mind these engines are a vast improvement from stock as they contain important upgrades to common..

The Industrial Injection Premium Stock Plus Duramax Long Block was designed to eliminate the common engine failures associated with the 6.6L Duramax. These premium upgrades result in industry leading reliability out of the engine build. We use the highest quality parts and machining processes in eve..

The Industrial Injection Premium Stock Plus Duramax Short Block was designed to eliminate the common engine failures associated with the 6.6L Duramax. These premium upgrades result in industry leading reliability out of the engine build. We use the highest quality parts and machining processes in ev..

The Industrial Injection Stage 2 Duramax Long Block was designed for those who are looking to push the limits to the ultimate level. These are designed to be reliable for competition use. We use the highest quality parts and machining processes in every engine build, guaranteeing you the up most rel..

The Industrial Injection 6.6L LB7 Duramax Stage 2 Short Block was designed for those who are looking to push the limits to the ultimate level. These are designed to be reliable for competition use. We use the highest quality parts and machining processes in every engine build, guaranteeing you the u..

The Industrial Injection built 6.6L LB7 Duramax Stock Long Block is the perfect choice for those seeking an affordable and reliable replacement engine. We are committed to using only the highest quality parts and precision machining processes in every engine build. This ensures both durability and r..

The Wagler STREETFIGHTER Duramax offers neck-snapping torque, with impeccable street manners, and is the ideal upgrade for light-duty GM trucks and classic hot rods alike. It was put through seventy-eight grueling engine dyno passes and intentionally pushed to the breaking point, just to find out wh..

DmaxStore Performance Stage 1 Short Block (700HP)Fits 2001-2016 Chevy/GMC 2500/2500HDPart# DMAX-PERF-SB-1*Please Call For Availability* Free shipping is to the lower 48 states only!*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY AL..

DmaxStore Performance Stage 2 Short Block (1000HP)Fits 2001-2016 Chevy/GMC 2500/2500HDPart# DMAX-PERF-SB-2*Please Call For Availability* Free shipping is to the lower 48 states only!*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY A..