Originally Posted by carta79
Yeah, it's clear. It was to my understanding that any piston from the "R" family (itr,ctr,gsr) would need this modification. I didn't think an aftermarket piston made for a GSR would bolt right up to an LS rod.
gsr pistons arent exactly from the 'R' family
Originally Posted by carta79
But hey you know more than me.
yes i do :db:
Originally Posted by bluespeed33
Ok thats cool that the rods and pistons should fit each other... i figured they would but does anyone know about what the compression ratio change is if gsr pistons are put in an LS engine? aftermarket or not... I just need to know if the SRP pistons 149236 (81.25mm 9.5:1) pistons will be even lower compression in the LS and if they would support alot of boost? they are forged... kinda low compression... if they are even lower compression ratio in the LS then I will get them... if not then I dont want to thanks
do you happen to know the cc of the pistons?