>How 'bout sealing the head gasket surface that corrodes by selective
>plating of the surface - teflon filled hard anodize (Tuffram), electroless
>nickel, or...???

Actually I've always just wondered about regular hard anodize (hardcoat) or
regular thin anodize for that matter, both real stinking cheap.  But FWIW
the water cooled rebuilders "claim" that with welded heads there will not be
the same high level or porosity and not nearly the problem.

John