I'm having trouble finding replacement head gaskets for my 455. I pulled a head due to water in a cylinder and misfiring. Found a broken pushrods and blown head gasket. Also found forged 060 over pistons. The bore measures 4.27 at the top and 4.3 at the outside of the chamfer. So I'm looking for gaskets with a bore size = or greater than 4.3. the only thing I can find are MLS gaskets that require surface smoothness of 60ra or better. I really doubt my head and block surfaces are that smooth(don't have all the old composite gasket cleaned off yet).  So I'm worried about MLS gaskets making a good seal. I wanted this to be a quick, fix the head, throw it back together type of thing. Any thoughts? Oh, btw, from the marks on the head and block from the fire ring of the the old gasket I think it was a bit to small. Looks like it over hung into the combustion chamber a tiny bit. Maybe why it failed..

Just remeasure with another digital mic. Came out correctly for 060 over. My chamfers measure 4.26. That said, should i just go with the fel pro 1155? Also, any recommendations for intake gaskets? I'm running an offy t-ram and the gasket that came off was a steel turkey tray. I don't plan on using one of those.

Right. That's very close to what I got when I remeasured with a different mic. So, what are people's opinions in the fel-1155 or any other gasket. Should I just buy some cheaper ones from the parts store and run it? It's a pretty stock engine.

I've never had a problem with the blue fel pro gaskets on fairly stock engines  I ran those on my last 455 that had about 500 hours on it before I tore it apart

Thanks for the input.