like it says how many mili meters is it stock? and how far can u bore it to not break stuff.

 

All the B series are the same bore of 81mm except the b20.
I'd go 81.5 max on stock sleeves, but that's just cause im hella paranoid. If you wanna go 83, 84, etc you should seriously consider professional sleeving.

 

so with the ITR pistons in my b18c1 motor right now really wouldnt work that well if my motor has alot of miles on it? also where might i get professional sleeving done, block guards are totally different right? this is the kit i was looking at something like this not this exact 1 http://cgi.ebay.com/ebaymotors...QrdZ1

 

You can go 82mm safely. I have a 400whp daily drivven eg coupe thats 82mm . But the only catch is You have to use JE Pistons they are the only one that stock 82mm pistons that are not custon made.

 

thats what u run? where did u get them?

 

I bought them from a company on here. But anybody who carys JE will have them.