273 or NOT 273?

toolmanmike said
#920's.
Very similar to the #302's except no eyebrow between the valves. The top photo is with a original 273 steel shim head gasket. It looks like quite a bit of room for larger valves.

View attachment 1716340458

View attachment 1716340459

You can fit a 2.100 and a 1.600 valve package in there.

Certainly it would be nice(r) if the exhaust valve was only 1.550 or even better 1.500 but those sizes fit in those heads.