
- Upgraded Durability: These are not rebuilt heads; they are a brand-new casting designed to address the inherent weaknesses of the factory aluminum heads.
- Complete Valve Train: Comes fully loaded with all new valve train components, including new valves, springs, seats, seals, retainers, and keepers, for a hassle-free installation.
- Black Nitride Coated Valves: The new valves feature a black nitride coating for enhanced durability and resistance to wear.
- Comprehensive Kit: Includes two brand-new cylinder heads, ensuring you have everything you need for a complete and reliable replacement.

Your 2001-2004 Duramax LB7 engine is a workhorse, but its aluminum cylinder heads have a known vulnerability: they are prone to injector cup issues and warping. These flaws can lead to frustrating leaks and a decline in engine performance. Don't let a weak point in your engine's design compromise its reliability. Our brand-new cylinder heads are a complete, long-lasting solution, meticulously engineered to solve these common problems and restore your engine's integrity.
Upgraded Durability: These are not rebuilt heads; they are a brand-new casting designed to address the inherent weaknesses of the factory aluminum heads.
Complete Valve Train: Comes fully loaded with all new valve train components, including new valves, springs, seats, seals, retainers, and keepers, for a hassle-free installation.
Black Nitride Coated Valves: The new valves feature a black nitride coating for enhanced durability and resistance to wear.
Comprehensive Kit: Includes two brand-new cylinder heads, ensuring you have everything you need for a complete and reliable replacement.
By choosing these brand-new cylinder heads, you're not just fixing a problem[...]
- Upgraded Durability: These are not rebuilt heads; they are a brand-new casting designed to address the inherent weaknesses of the factory aluminum heads.
- Complete Valve Train: Comes fully loaded with all new valve train components, including new valves, springs, seats, seals, retainers, and keepers, for a hassle-free installation.
- Black Nitride Coated Valves: The new valves feature a black nitride coating for enhanced durability and resistance to wear.
- Comprehensive Kit: Includes two brand-new cylinder heads, ensuring you have everything you need for a complete and reliable replacement.