my experience with drop in pistons is they are a waste of money. cost of pistons, engine has to be pulled, broken completley down, rods removed from crank, reinstalled(which is a whole new process),
cylinders honed, engine reassembled and reinstalled, figure about $1500+ besides the rod/crank issues created. not aware of any 13.7 je pistons, just 13.5. can easily achieve that with mill and adjusted squish for about $150. if ur a street rider, be aware any compression mods increase engine temps so how and where u ride should be a primary consideration. thin hg, good performance valve job, int. cam or degreed stk. cams, good exhaust, and tune, that gen 3 will be streetable and a handful.
Last edited by gaz; 04-28-2018 at 09:50 AM.