Thread: MR1 block questions...
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Old 04-25-2021, 04:35 PM
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charlie66 charlie66 is offline
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Is this motor a .030 over 455?

If you go to wallace. I put in 455 .030 over. 4.181 bore 4.25 stroke . 72cc chamber. 40 dish . .041 crush 4.300 gasket bore and .020 deck height. Its comes up 8.57 to 1 .

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