GM Race Long Block For 06-07 LBZ 6.6L Duramax Industrial Injection " 14 OD x 12 ID x 4 H in 4 Inch Block Kit with

4 Inch Block Kit with Add-A-Leaf

Works with HP1 Wiring Harness (Sold Separately)

and dirt capacity

there's no need for cutting or welding

Gaskets included: exhaust manifold

GM Race Long Block For 06-07 LBZ 6.6L Duramax Industrial Injection " 14 OD x 12 ID x 4 H in 4 Inch Block Kit withIndustrial Injection 2006 2007 6. 6L LBZ Duramax Race Long Block Engine. The Industrial Injection Race Duramax Long Block was designed for those who are looking to push the limits of performance 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 reliability and precision to have the best performing engine on the