'65 Cuda - 273 rebuild or swap?

The only reason to mess with a 273 is if you're building an original numbers matching car. That's what I'm doing, and I'm starting to doubt myself.

I'm still waiting for Egge to make some more domed pistons. ETA is now January. Given the typically over-sized deck height and chamber volume, plus the excess bore size and thickness of off-the-shelf head gaskets, it's tough to get the compression up where it needs to be to run well. Even with the Egge domed pistons, I'll have to do some milling to get up into the 9's.

If you wanted some zero deck flat tops for quench you would have to have them custom made.

It would be so much easier and probably cheaper to just build a 318. It would look identical, and it would have more power and torque and you would have way more parts to choose from.