> Does the HKS head gasket substitute for
> o-ringing the block in a turbo application?
> Are these two equilivalent for any boost
> Joshua L.
We at Z-1 haven't found the need for o-rings yet .The HKS is the best metal gasket we've found.We have run up to 600 hp with turbo and nitros without any failures. We also reuse the gasket each time spraying it copper seal up to 5 times