2001-2004 Duramax Cylinder Head Cast Iron (110100101)

Fits

Experience Duramax cylinder head perfection with the 2001-2004 Cast Iron Head! Different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. Made for performance, these heads can handle the heat without warping, melting, or cracking.

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.

Discover improved valve train components included in each head. PPE's valves feature premium materials and full nitriding. Experience quicker response at high RPMs and eliminate valve float with the increased spring rate and lighter retainers/locators of the tapered valve springs. Rest assured with superior wear and heat resistance from the powder metal valve seats. The cast-iron construction also adds to the reduction of engine noise.

Whether you've got a busted aluminum cylinder head or just want your Duramax engine to last longer and run smoother, the PPE Cast Iron Cylinder Head is hands down the top pick.

Part Number: 110100101

• 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)
• Fuel injector cups are cast in the cylinder head, eliminating leaks caused by the original fuel injector cup seals
• Higher fatigue strength and heat resistance significantly extend cylinder head lifespan
  
• All valves are fully nitridated with increased abrasion resistance
• High-strength Chromoly steel CNC machined spring retainers and spring locators
• Upgraded tapered valve springs provide faster response and eliminate valve float at high RPMs
• Powdered metal valve seats offer superior wear and heat resistance
• Significantly reduced diesel engine clatter compared to the factory aluminum cylinder heads
• Increased thermal efficiency compared to aluminum heads

• 50 States Emissions Legal (E.O. D-701-38)
• 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).

Duramax Iron Heads Upgrade: Diesel World