PPE Upgraded Cast Iron Cylinder Head For 01-04 Chevrolet/GMC 6.6L LB7 Duramax
PPE Upgraded Cast Iron Cylinder Head For 01-04 Chevrolet/GMC 6.6L LB7 Duramax
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 grey 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.
Features:
- 3-Year Unlimited Mileage Warranty
- Increased thermal efficiency compared to aluminum heads
- All valves are fully nitridated with increased abrasion resistance
- Powdered metal valve seats offer superior wear and heat resistance
- High-strength Chromoly steel CNC machined spring retainers and spring locators
- Higher fatigue strength and heat resistance significantly extends cylinder head lifespan
- Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon alloy intake valves
- Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads
- Upgraded tapered valve springs provide faster response and eliminate valve float at high RPMs
- Fuel injector cups are cast in the cylinder head, eliminating leaks caused by the original fuel injector cup seals
- Specially alloyed gray cast iron liquid-cooled cylinder head with elevated strength in high temperatures and creep resistance
- Cast iron cylinder head offers the same heat expansion rate as the OEM iron block which completely resolves the common head gasket scrubbing issue (blown head gasket)
- Each head comes complete with BRAND NEW springs, spring retainers, spring locators, valves, valve seals, valve keepers, valve seats, valve guides, rocker arm dowels, and freeze plugs
Fitment:
- 2001-2004 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
- 2001-2004 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
Note:
- RPO Code - LB7 Only!
About Us
Max Flow Motorsports specializes in aftermarket automotive and UTV parts & accessories. All parts are brand new, in stock, and ready to ship unless otherwise stated on the listing. Customer satisfaction is our number one priority!
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Returns
All of our parts and accessories are returnable and refundable. You MUST contact us within 30 days of the shipment date. The item MUST be unused, uninstalled, in the original packaging and in brand new condition. All returns are subject to a 20% restocking fee. Max Flow Motorsports does NOT cover return shipping and you must contact us for an RA# (Return Authorization Number) prior to sending an item back to us.
