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Generation III Internal Engine 1997-2006 LS1 | LS6
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Milling cylinder heads

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Old 06-06-2006, 04:29 PM
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Default Milling cylinder heads
How far can the LS1 cylinder head be milled before you start having intake manifold-mating problems? Im trying to drop a 72cc LQ4 head down to at least a 64cc..
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Old 06-06-2006, 05:15 PM
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Every .006" milled is 1cc out of the combustion chamber.
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Old 06-06-2006, 05:35 PM
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How much is too much?
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Old 06-07-2006, 08:30 AM
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Ive got .040 no problem ringht now. Ive heard of others doing .050. Just watch your P to V clearance.
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Old 06-07-2006, 11:34 AM
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Thats what i needed to know, Thanks!
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