Edelbrock s first cylinder head for the diesel engine market is a direct bolt-on replacement for all 2001-2016 6.6L Duramax Diesel V8 engines that provides a significant advantage in performance and durability for street and off-road applications. But why are Edelbrock s new heads better for your Duramax-powered Chevy/GMC truck? Unlike cylinder heads for a gasoline engine; a direct-injected diesel like GM s 6.6L Duramax relies on the motion of air coming into the cylinder to make power. This motion is referred to as swirl; and our engineers not only managed to develop a head that yields greater volumetric efficiency than the factory Duramax head; but we did so with a swirl ratio similar to that of the factory to ensure a complete and clean burn to meet the stringent diesel emissions requirements. The result is a 50-state emissions-legal cylinder head for the 6.6L Duramax that lets you turn up the turbo boost because it is no longer the restriction in the system. Our new Diesel Cylinder Head for the 6.6L Duramax is cast from heat-and pressure-treated A356 aluminum to reduce porosity while also increasing both strength and fatigue properties. Intake and exhaust runners are designed to optimize flow and swirl; but engine builders and head porters will appreciate the extra deck and port wall material for custom porting and deck strength. Edelbrock Diesel Heads are ready to run right out of the box; making them the perfect choice for a street performance upgrade. Our heads are designed; manufactured and assembled in the USA to fit all variations of the Duramax engine that were offered in Silverado and Sierra pickups manufactured between 2001 and 2016. Order Edelbrock part number 79029 for 2001-2004 LB7 Duramax applications. MSRP: $1;944 •50-state CARB emissions legal (E.O. #D-215-102) •Castings are treated to Hot Isostatic Press (HIP) process for strength •Heat-treated to T7 for the extreme diesel operating environment •Compatible with factory Duramax
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