PPE Power Cylinder Head (One) Cast Iron LB7 - 110100101
OEM Duramax cast aluminum cylinder heads fall short over time; the
different heat expansion crates between cast iron engine block and cast
aluminum cylinder head cause head gasket scrubbing, and eventually blown
head gaskets. Aluminum cylinder heads are also prone to warping, melting,
and/or cracking in high performance applications where excessive heat is
introduced.
Pacific Performance Engineering LB7 cast iron cylinder heads are the
ultimate upgrade to your Duramax engine and eliminate any head gasket or
cracking concerns. Cast from high-quality alloyed grey iron, PPE LB7
cylinder heads offer elevated fatigue strength and heat and creep
resistance, which prolongs the cylinder head's lifespan significantly. They
also share the same heat expansion rate as the stock cast iron cylinder
block, so no more blown head gaskets. These cylinder heads also feature
cast-in fuel injector cups and solve the OEM injector cup leaking issue.
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. Whether you have a damaged aluminum
cylinder head or a desire for better reliability and longevity on your
Duramax engine, the Pacific Performance Engineering LB7 cast iron cylinder
head is undoubtedly the best choice.
Component features and benefits:
* Premium 21-4N, Stellite-reinforced exhaust valves, and chrome-silicon
alloy intake valves
* All valves are fully nitridated with increased abrasion resistance
* High-strength, CNC-machined chromoly steel 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
* 3-Year Unlimited Mileage Warranty
