09-21-2013, 02:24 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
The difference is steel cored gaskets. I have been through this with a couple of motors in the last two months. Go steel cored and also check your port matching and sizes.
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