davepl

I was considering using the Cometic head gaskets for my F2-blown GM502. Does anyone have any opinion for or against these?

More important, the bore on the 502 is 4.470", and the closest head gasket bore I can find is 4.540". How much larger is the bore on the gasket than the cylinder in most cases? Is that close enough?

Thanks,
Dave

sscm93

Cometics work well. I have heard some people say that they leak water sometimes but have never ran into that problem myself. I have heard alot of good things about the fel-pro multi-layer. They are less prone to leak. The bore size you spoke of is fine.