Generation III Internal Engine 1997-2006 LS1 | LS6
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Compression Ratio

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Old Jun 19, 2011 | 04:30 PM
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Default Compression Ratio

I have 243's milled .020 and a .045 gasket what do you think CR is on stock 99 LS1?
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Old Jun 19, 2011 | 04:32 PM
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i think around 10.7-10.8???
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