How much to mill a 243?

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Jun 3, 2008 | 05:11 PM
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How much do I need to mill a stock 243 head for it to have a 58cc chamber? My 408 has -10cc pistions and I need a 58cc head with a .040 gasket to get 11.7 CR.
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Jun 4, 2008 | 01:29 AM
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Anyone? Or anyone know where I can look this up? I'm guessing 45 but I'm not to sure.
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Jun 4, 2008 | 03:43 AM
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7 cc ...
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Jun 4, 2008 | 05:11 AM
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I think the rule of thumb is .006" per cc. So if they are 65cc stock, then mill them .042".
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