5.7 Hemi progress

image of 5.7L Hemi Head milling
5.7L Hemi Head milling

The heads of the 5.7 Hemi were milled about 0.020″ for some added compression ratio.
An important thing is the actual finish of the milled heads. Multilayer Headgaskets require a smoother finish than regular composite headgaskets like used on earlier motors. Luckily the headmill was able to pretty much get the machined finish smooth enough. I blocked and wet sanded the milled surface with some 600grit emerypaper and the result was better then I expected.

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