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Old 08-14-2021, 08:51 PM
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Stan Weiss Stan Weiss is offline
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Just to be clear I have never replaced a blown head gasket on a Pontiac. But I have replaced blown head gaskets that could be clearly seen where they had blown when you looked at the gasket. On these engines while the cranking compression was low, it was far from being zero. #2 piston does not show a great amount a burn cycles while #4 shows almost no burn cycles at all.

Stan

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