Ok guys my block had damage on one cylinder ,
its at the machine shop today but I need to know
what's the biggest bore I can go on my 81 mm wesico pistons
My setup is b16a2 9:1 wesico pistons 81 mm, eagle rods.
They are going to call me later today to let me know how
much they have to bore to get rid of the scatch on the wall
81.25 ? 81.50? 82?

 

you're gonna have to get new pistons.

 

Trick question?

 

If you bore it out any more without replacing the pistons, you'll have this unpleasant thing called piston slap, caused by incorrect P2W clearances. If you want to keep your pistons, get a new block. If you want to keep your block, get new pistons. It's either one or the other.