11.0:1 compression on standard heads? is it possible?
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11.0:1 compression on standard heads? is it possible?
was just wondering if it is possible for me to deck a set of standard ls1 heads to get my compression to 11:1
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#5
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What short-block are we working with, and which casting number heads are you about to mill?
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#9
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Those heads milled .030" should give you about 61cc cambers. With GM head gaskets that should be about 11.1 CR. If you used Cometic .041" gaskets, that would put you around 11.4 CR.
#12
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Very possible. Up to around 12.75:1
I have stock bottom end with 243 heads milled to over 13:1, with 4cc valve releifs
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If you milled the heads that much, the intake would not fit right and the bolt holes would not line up. I highly doubt you could use the listed cam and not have piston to valve clearance problems.
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