Quote:
Originally Posted by Fiftydriver
Back to the LSX376-B15 long block, is there anyway to raise the compression ratio near 10:1 without replacing the pistons, such as shaving the heads to decrease combustion chamber volume or go with thinner head gaskets.
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You would need to take out roughly 10cc out of the chamber to get up to 10:1, which is kind of a lot. By the time you do that, considering the labor, machining costs, new gaskets and bolts, etc you may want to consider a custom LS3 shortblock. I just quoted a gentleman looking at a 416ci ERL longblock for 12psi and it was pretty comparable to the LSX376.