If anyone actually knows of a 273 head gasket with the correct bore diameter other than special order, really expensive, Cometic gaskets please speak up. My understanding is that you have to use a 318 gasket now-days on a 273 because they no longer make 273 gaskets other than really expensive special order . I am building a bone stock 273 and would love a cost effective 273 size gasket but can't find one.
Thanks.
It has been over a decade ago but there was none when I rebuilt mine. I used the MP composition gaskets. Thinnest and smallest bore size I could find at the time. (MR Gasket 1121G) Mr. Gasket 1121G Mr. Gasket Head Gaskets | Summit Racing
Here's the stock ones. The bores are not perfectly round. There are a few members here that have found NOS gaskets and that's the only ones I know of that are correct. Cometic is the only brand that can make the smaller bore size. All the rest will be 4" bore or larger.