273 for early A

Put the cast-iron single-plane on it, paint it red, and call it a big-bore 273. Show people go for that. They hated that my S-clone didn't have a 340. But as soon as I called it a 3.58stroker -340 with a standard 4.04 bore, we were all friends again; go figure .
Lots of good pistons for the 318. If you happen to have a Magnum, you'll be ahead of the game in every way. Teeners are so much easier to make compression with, on account of the larger swept volume; [email protected], and [email protected].