mdrnmscle2001

i just need to know if any of the factory pistons in early ls1's had valve reliefs in the pistons. i just pulled the head for the first time since owning the car for a bottom end rebuild and found valve reliefs. to my knowlege no factory ls had that. any one ever seen it?

buddhaz06

iTrader: (8)

Mine has some. But it didn't before i put the cam in lol

mdrnmscle2001

lmao i had thought my motor hadnt been broken into until now but i am wrong on that point i guess lol. i picked a combo that wont need them so i may go bigger now. possibly even a 383 if its not already haha. havent gotten that far down yet

Burken01

iTrader: (88)

They came flat tops, but you can run a little bigger cam and not worry about PTV clearance now..