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Milling Heads -Double Post - Sorry

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Old 06-30-2005, 08:00 AM
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WKMCD
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Default Milling Heads -Double Post - Sorry

Does anyone know what the compression ratio would be for ls1 heads milled .030?
Old 06-30-2005, 10:05 AM
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0Tony Mamo @ AFR
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Milled .030 equates to 5 cc reduction in chamber volume....that puts your chamber volume around 62 cc's. With an aftermarket .040 gasket you would have about 11.1 - 11.2 or so CR....with the thicker factory gasket I believe you would come in around 10.9 - 11.0 or so.

Call me at AFR if you really need exact and I will figure it for you quickly, but the figures above will be very close.

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Old 06-30-2005, 10:53 AM
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SideStep
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Old 06-30-2005, 11:30 AM
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St. Jude Donor '05

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Also depends on your pistons out of the hole value.

http://www.rbracing-rsr.com/compstaticcalc.html

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