57.5 Grand Sport piston for smallframe - sold Jan 7, 2010 2:03:14 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by mikekoch on Jan 7, 2010 2:03:14 GMT -5 Not going to use the GS piston on this build, sooo...I have a new 57.5 mm GS piston, rings, pin and clips. Needs a good home. Working on a price.ThanksMike