Sorry If This Is A repost

I Have A b16a and i bought a set of npr b16b pistons off a friend for cheap i was wondering if im going to have any problems with anything just putting them in with a stock bottem end
also i have a set of supertech high comp valves with those pistons and valves what would my c/r be

Any infowould be cool thanks

 

roughly 11.9:1

 

So would there even be a felt differenc with putting the CTR pistons in an otherwise internally stock B16A?

 

If you're asking about a power gain then yes you'd feel it but tuning and supporting parts are what makes the biggest difference, power wise and reliability.