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Old 04-02-2012, 08:21 AM
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my87Z my87Z is offline
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the only way that the pistons are .043 in the hole is if it has been rebuilt with typical rebuilder pistons with are .020" shorter on compression height, this would make sense since most GM engines from the factory are .020-.025 down the whole, add another .020" and it could be .043.

my suggestion would be to first remeasure, then it you are correct, to either tear it apart and build it up correctly or i guess you could try and use about a .015" shim head gasket. this would put your quench around .058, which i have seen worse.
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