ID Pistons

I just can't seem to ID the new pistons in my motor. Its a 1972 360 truck motor, all rebuilt, don't know if stock or what.
The pistons are flat tops, a small indentation ring in the middle, .030 over punched on the flat top, the B-200 cast on the inside of the skirt, and some hash marks cast on the underside of the piston.
Any ideas?
I also don't see any numbers on the cam. Can I use calipers and see what the lift is?
Author: admin