PERU-DB7

Im trying to do a LS VTEC turbo, i choose a b18a block, b17 head, i recently buy a srp pistons part number 149214, i find in the web the specifications for this piston, in the section that states "acura b18a/b ls/vtec b16a or *b18c1 head", and their supposed to be a 9.7:1 CR , then that actual piston set has the letter V which means suitable for nitrous, but not turbo. is it because its higher than the "recommended" compression for a turbo honda build? someone help me find the right piston, thanks a lot