2004.5-2010 GM 6.6L Duramax Cast Iron Cylinder Head (One) LLY/LBZ/LMM - Pacific Performance Engineering - 110100103

Duramax Cast Iron Cylinder Head

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 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 grey iron, the PPE Cylinder Head offers elevated fatigue strength, 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.

Each head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The valve springs feature higher spring rate, lighter retainers/locators, enabling faster response during higher RPMs. Alloy 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.

Requires the use of LBZ/LMM glow plugs on LLY engines

Duramax Iron Heads Upgrade: Diesel World

• 2004 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2004 Chevrolet Silverado 3500 6.6L DIESEL
• 2004 GMC Sierra 2500 HD 6.6L DIESEL
• 2004 GMC Sierra 3500 6.6L DIESEL
• 2005 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2005 Chevrolet Silverado 3500 6.6L DIESEL
• 2005 GMC Sierra 2500 HD 6.6L DIESEL
• 2005 GMC Sierra 3500 6.6L DIESEL
• 2006 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2006 Chevrolet Silverado 3500 6.6L DIESEL
• 2006 GMC Sierra 2500 HD 6.6L DIESEL
• 2006 GMC Sierra 3500 6.6L DIESEL
• 2006 Hummer H1 6.6L DIESEL
• 2007 Chevrolet Silverado 2500 HD Classic 6.6L DIESEL
• 2007 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2007 Chevrolet Silverado 3500 Classic 6.6L DIESEL
• 2007 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2007 GMC Sierra 2500 HD Classic 6.6L DIESEL
• 2007 GMC Sierra 2500 HD 6.6L DIESEL
• 2007 GMC Sierra 3500 Classic 6.6L DIESEL
• 2007 GMC Sierra 3500 HD 6.6L DIESEL
• 2008 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2008 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2008 GMC Sierra 2500 HD 6.6L DIESEL
• 2008 GMC Sierra 3500 HD 6.6L DIESEL
• 2009 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2009 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2009 GMC Sierra 2500 HD 6.6L DIESEL
• 2009 GMC Sierra 3500 HD 6.6L DIESEL
• 2010 Chevrolet Silverado 2500 HD 6.6L DIESEL
• 2010 Chevrolet Silverado 3500 HD 6.6L DIESEL
• 2010 GMC Sierra 2500 HD 6.6L DIESEL
• 2010 GMC Sierra 3500 HD 6.6L DIESEL