Originally posted by redsin
i know you can put b16 pistons in an ls to up the compresion ratio in an ls vtec. will that also work with a stock ls motor. only asking because i have b16 pistons. so it would be a cheap upgrade if they will work. let me know what you guys think. thank in advance for any replys.
Yeah, dropping in USDM B16A pistons into your LS/VTEC will up your compression to ~11.3:1 if you have a B16A head. If you have a B18C1/5 head your c/r will drop slightly to ~11.1:1. Hope that helps.