PPE 110100103 CAST IRON CYLINDER HEAD (ONE) FOR 04.5-10 GM 6.6L DURAMAX LLY/LBZ/LMM

The PPE 110100103 Cast Iron Cylinder Head is a game-changer FOR owners of 2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM engines. Designed to address the shortcomings of OEM cast-aluminum cylinder heads, this product offers unmatched durability and performance. Engineered to be 50 States Emissions Legal (E.O. D-701-38), this cast iron cylinder head eliminates the common issue of head gasket scrubbing and blown head gaskets caused by the differing heat expansion rates between the engine block and cylinder head.

Crafted from high-quality alloyed gray iron, the PPE Cylinder Head boasts superior fatigue strength, heat resistance, and creep resistance, ensuring a longer lifespan FOR your engine. By sharing the same heat expansion rate as the stock cylinder block, this upgrade guarantees a reliable solution to prevent blown head gaskets.

Each cylinder head comes equipped with upgraded valve train components, including valves made from superior materials and fully nitridated FOR optimal performance. The tapered valve springs with a higher spring rate and lighter retainers/locators deliver improved response at higher RPMs, eliminating valve float. Additionally, powder metal valve seats offer exceptional wear and heat resistance, enhancing overall engine efficiency.

With the PPE Cast Iron Cylinder Head, you can say goodbye to the concerns of warping, melting, or cracking often associated with aluminum cylinder heads. Whether you're looking to replace a damaged head or seeking enhanced reliability FOR your Duramax engine, this product is the ultimate choice FOR seamless performance and longevity. Please note that the use of LBZ/LMM glow plugs is required FOR LLY engines.

Experience unparalleled quality and durability with the Duramax Iron Heads Upgrade by PPE - your trusted partner FOR optimizing your engine's potential.