PPE 110100113 2004.5-2010 GM 6.6L Duramax Ported Cast Iron Cylinder Head
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- Ships from PPE (Pacific Performance Eng.)
Duramax Ported Cast Iron Cylinder Head - 2004.5-2010 GM 6.6L (One) LLY/LBZ/LMM The OEM Duramax cast-aluminium cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminium cylinder head cause head gasket scrubbing, and eventually blown head gaskets. The aluminium cylinder heads are also prone to warping, melting, and/or cracking in high-performance applications where excessive heat is introduced. PPE’s new ported 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 Head also shares the same heat expansion rate as the stock cast-iron cylinder block – no more blown head gaskets. Our CNC porting process improves airflow, enhancing power, fuel efficiency, and throttle response while reducing engine stress and turbo lag. By smoothing the ports and maintaining wall thickness, these heads provide increased horsepower and torque without sacrificing reliability. Tailored to each specific head, the CNC machining compensates for casting variations, ensuring consistent and optimized airflow dynamics. Whether you have a damaged aluminium 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. *Important
Note:
The valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created. For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006'' to +0.008'') oversized exhaust valve seats (Nominal size 34mm). Compatible Vehicles:2004 GMC Sierra 3500HD LLY 8 Cyl 6.6 Liter Turbo 2004 GMC Sierra 2500HD LLY 8 Cyl 6.6 Liter Turbo 2004 Chevrolet Silverado 3500HD LLY 8 Cyl 6.6 Liter Turbo 2004 Chevrolet Silverado 2500HD LLY 8 Cyl 6.6 Liter Turbo
Duramax Ported Cast Iron Cylinder Head - 2004.5-2010 GM 6.6L (One) LLY/LBZ/LMM The OEM Duramax cast-aluminium cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminium cylinder head cause head gasket scrubbing, and eventually blown head gaskets. The aluminium cylinder heads are also prone to warping, melting, and/or cracking in high-performance applications where excessive heat is introduced. PPE’s new ported 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 Head also shares the same heat expansion rate as the stock cast-iron cylinder block – no more blown head gaskets. Our CNC porting process improves airflow, enhancing power, fuel efficiency, and throttle response while reducing engine stress and turbo lag. By smoothing the ports and maintaining wall thickness, these heads provide increased horsepower and torque without sacrificing reliability. Tailored to each specific head, the CNC machining compensates for casting variations, ensuring consistent and optimized airflow dynamics. Whether you have a damaged aluminium 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. *Important
Note:
The valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created. For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006'' to +0.008'') oversized exhaust valve seats (Nominal size 34mm). Compatible Vehicles:2004 GMC Sierra 3500HD LLY 8 Cyl 6.6 Liter Turbo 2004 GMC Sierra 2500HD LLY 8 Cyl 6.6 Liter Turbo 2004 Chevrolet Silverado 3500HD LLY 8 Cyl 6.6 Liter Turbo 2004 Chevrolet Silverado 2500HD LLY 8 Cyl 6.6 Liter Turbo
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.