I'm in the early stages of a 445 build. I'm using C6AE-R heads iron heads. My question is around the head gasket. The chambers of the C6AE-R heads open up slightly more than 4.080 in several places and the cylinder bores will have chamfers that are more than 4.080 in diameter at the top. Assuming a zero-deck, Is there anything to consider when you have a situation where the gasket bore diameter is slightly smaller in some places than the chamber diameter or chamfer diameter on the bores?
Also, it looks like for 4.08 bore diameter, Cometic is the only choice in 4.08 that comes up on Summit. Any other head gasket choices I should consider?