PPE Ported Cast Iron Cylinder head, 2001-2004 LB7
Part# 110100111
Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesels
50 State Legal CARB EO# D-701-38
The PPE Ported Cast Iron Cylinder Head for 2001-2004 LB7 Duramax engines offers superior durability and reliability compared to OEM aluminum heads. Made from high-quality cast iron, it matches the engine block’s heat expansion, preventing head gasket failures. Its CNC porting enhances airflow for improved power, fuel efficiency, and throttle response. Cast-in injector cups eliminate common leaks, making this cylinder head an expert upgrade for lasting performance and reduced engine stress.
Features:
-
Alloyed gray cast iron liquid-cooled cylinder head
-
Increased thermal efficiency compared to aluminum heads
-
5-Axis CNC ported intake and exhaust ports for smooth, unrestricted airflow
-
Reduced noise and vibration, better ride
-
Eliminates head gasket scrubbing issue (blown head gasket)
-
Higher fatigue strength and heat resistance
-
Premium 21-4N, Stellite-reinforced exhaust valves
-
Fully nitridated valves, better abrasion resistance
Includes:
- All valvetrain components, rocker arm dowels, and freeze plugs
DmaxStore Notes:
-
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).
Warranty:
- 3 Year Limited Warranty
