260 head gaskets Sept 18, 2022 12:02:09 GMT -5 via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by efmiller on Sept 18, 2022 12:02:09 GMT -5 im building a 260 for a comet. 289/302 head gaskets are set for the 4 inch bore. will theses work on the 3.8 inch bore?. i have original heads and its bored .030 over.Ed