not very long ago one of my customer ran in to much of the same deal he did not want the Orings and we just could not cut the deck with out getting in to alot of $$$ i told him the same thing use the copper or file the S steel still in the block file flat . if i would file the copper ? it would have to do with three things how hi it is sitting .were it is on the deck and were the fire ring is on the new head gasket.the make up of the gasket .