alright.. well I pulled the head off of my b20/vtec today. and I checked the walls and I can catch my finger on the number 2 cylinder.... so I guess I need to bore and hone it.. but to what? I want it to run good on the streets. but I also want it to take a dry 75 shot every once and a while... so is there any stock pistons I can use? or do I have to go with je or the like? I also plan on rods and all new bearings so thats a must... I just wished I never took the head off. please give me some insight.. maybe tell me your set up.. thanks guys

 

I really need to know what bore and compression

 

I'd throw that out and get a fresh B20 shortblock or an LS shortblock, or get your motor sleeved. An 84.5 or 85mm B20 is not a suitable candidate for nitrous.