PPE 110100101 2001-2004 GM 6.6L DURAMAX CAST IRON CYLINDER HEAD (ONE) LB7

50 States Emissions Legal (E.O. D-701-38) The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and/or cracking in high-performance applications where excessive heat is introduced.

PPE's new LB7 Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, and heat and creep resistance, which prolongs the cylinder head's lifespan significantly.

PPE Cylinder Heads also share the same heat expansion rate as the stock cast-iron cylinder block no more blown head gaskets. PPE LB7 Cylinder Heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue.

Each head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers/locators enable faster response during higher RPMs and eliminate valve float. Powder metal valve seats provide superior wear and heat resistance. The denser and stiffer material properties from the cast-iron construction also significantly reduce engine clatter.

Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice.

Duramax Iron Heads Upgrade: Diesel World

Unboxing PPEs new Duramax cylinder heads!: LinCo Diesel Performance

Get ready to elevate your Duramax experience with the PPE 110100101 2001-2004 GM 6.6L Duramax Cast Iron Cylinder Head. Specially designed for superior performance, this cylinder head is a game-changer for your engine's reliability and longevity.

The OEM cast-aluminum cylinder heads can suffer from various issues over time, including head gasket scrubbing and warping due to differing heat expansion rates. PPE’s Cast Iron Cylinder Head mitigates these problems, offering a robust solution to enhance your Duramax engine’s performance and durability.

• 50 States Emissions Legal (E.O. D-701-38)
• Constructed from high-quality alloyed gray iron for elevated fatigue strength
• Matched heat expansion rate with stock cast-iron engine block to eliminate blown head gaskets
• Includes cast-in fuel injector cups to resolve leaking issues
• Upgraded valve train components with nitridated valves for superior performance
• Tapered valve springs for faster response and elimination of valve float
• Powder metal valve seats for enhanced wear and heat resistance
• Denser and stiffer cast-iron construction to reduce engine clatter

If you're seeking enhanced reliability or need to replace a damaged aluminum cylinder head, the PPE Cast Iron Cylinder Head is your optimal choice for improved performance and peace of mind on the road.