More Motor Questions

Its a 65 Barracuda 273 motor. I am trying to upgrade to the 10.5 pistons, from the 8.8 ones. My 8.8 have 4 valve reliefs, this new piston has 2 reliefs, but doesn't seem like it has enough dome to be a 10.5 piston.
The dome is not very large and is hard to tell its there.