2001-2004 GM 6.6L Duramax Cast Iron Cylinder Head (One) LB7Duramax Cast Iron Cylinder Head (One) LB7 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. PPEs Cast Iron Cylinder Head is the

The PPE Bypass Valve eliminates the extremely restrictive mechanical factory valve which maximizes fluid flow from the transmission cooler

Additionally

Slide this polished or ceramic black 304 stainless steel exhaust tip over your factory pipe and instantly upgrade your truck’s look in seconds

Dash harness includes a connector for the 69+ GM  steering column connector

Instrument cluster wiring is designed with a “cluster harness disconnect” system for easy access and service

NOT BLUE AS SHOWN IN PICTURE

and C4 clutches and Kolene steels

MODEL R-352N Nominal Diameter (inch) 3

1968-1972 CHEVELLE WAGON

Our PPE belt-driven Bosch CP3 fuel pump works in conjunction with the stock fuel system and is controlled by a sophisticated microprocessor module

Antenna cable is included

1968 1969 1970 1971 1972