Are all 273 V8's the same?

66fs said
Actually 2 barrel pistons are flat tops. All 4 barrel pistons are pop ups withe the dome and 2 valve reliefs. The D Dart 273 275 hp came from a larger cam, springs, and a Holley carb (if I remember the carb correctly).

I have 5 original 273 commando cars here right know of Todds and all are flat tops same as the 2bbl engine. I just ordered another a set of domed from Egge.