what is a good or max bore that can be done to a stock gsr bottom end looking to get new pistons/rod's and bored out a little

info please

or is it not even necessary.....i was thinking of sticking with stock sleeves after seeing all these guys pushing close to 600whp on them, plus i planned on never going over 400whp, thats a grand i could spend elsewhere, and the car will be usuing hondata+lots of dyno tuning

 

i personally wouldn't go over 81.5mm

 

I think a good max bore for FI is 83mm(if sleeved) so you have room to bore it more if it needs rebored. When I build my block up a little on my B16 im going with a GSR crack and forged rods/psitons. I don't think sleeving is important if you have a very good tune and dont push the limits

 

he was asking about stock sleeves

 

If you wanna use it for FI then 81.50 is the limit, for NA limit is 82.00 mm (on stock sleeves)

good luck.