[lineslinger]

Diamond makes a high quality piston, each one
cnc'd out of a single piece of forged aluminum.
While building our engine and weighing the pistons we had to make zero weight correction on 8 seperate pistons. We would literaly blow them off with compressed air and they weighed out identically. The builder I work with has since switched to diamond exclusively.
I paid $660 for 8 custom sized pistons, 11 to 1 compression including rings and wrist pins, the distributor had a wide variety of "standard" sizes as well.