2001-2004 GM 6.6L Duramax CNC Ported Cast Iron Cylinder Head (One Head) LB7Duramax Ported Cast Iron Cylinder Head 2001 2004 GM 6. 6L (One Head) LB7 The OEM Duramax cast aluminum cylinder heads fall short over time the differing heat expansion rates between the 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.

center air conditioning vent housing with vents

Mounting depth is 2

Custom wire harness (uses factory coil pack sub harness)

this kit comes with mounting brackets for select Chevrolet

featuring 4-ply heat-resistant internal fibers that provide strength against high-pressures and temperatures

PPE experts with 35+ years of experience upgrade the Allison transmissions with the latest performance parts to insure a transmission built to suit your needs

8"-10 Heavy-Duty)

OEM Upgrade

1966-1967 CHEVY NOVA RADIO

Allison 1000 Transmission Filter

Because a dry sump does not need to have an oil pan big enough to hold the oil under the engine

and the Technophonic intelligently routes the selected inputs to all five balanced outputs