PPE GM 6.6L Duramax Cast Iron Cylinder Head (One) LB7 - 110100101 Aluminized she'll tow up the grade

she'll tow up the grade quicker

Protects and Extends The Life Of Your Injectors

PPE LB7 Cylinder Heads also feature cast-in fuel injector cups and solve the OEM injector cup leaking issue

The new XWS3002XL must be used in conjunction with the PF3001XL

PPE GM 6.6L Duramax Cast Iron Cylinder Head (One) LB7 - 110100101 Aluminized she'll tow up the grade50 States Emissions Legal (E. O. D 701 38) 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. PPE's new LB7 Cast Iron Cylinder