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Old 07-07-2019, 10:34 PM   #67
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Join Date: May 2010
Location: MN/FL
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Default Re: 59AB Cooling System Advice Needed from the Experts (not an overheating issue)

To me if you did a .080 over regular head gaskets are fine. Not really a over bore. But you have some burnt out areas of the copper gasket. Try a composite. I run a copper on a .060 over. No issues, I probably run a bit lean sometimes and heavy others. Plugs tell me.

It'd be weird if you had a iron/copper/aluminum reaction that quick. Assuming you have aluminum heads from previous post.


Last edited by Tinker; 07-07-2019 at 10:59 PM.
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