I use cometic head gaskets. They are rubber coated mls gaskets. They are supposed to be bulletproof and able to be reused multiple times. I have never had the heads off to test the reusable part but had the heads surfaced prior to assembly and have not had any coolant leaks from the gaskets. I am running them on an aluminum block with aluminum heads though so not sure how they would work with an alum/iron setup. Now if I could just get those damn header bolt holes sealed up well I would be happy.
Blaine
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