Convention holds that thinner rings are "racing" and thick rings are "street". But what was thin ten years ago is considered thick today. It's not unusual for high end builds to use 1/16" rings for a street engine, but there's a lot to consider if you go that route and cylinder finish and roundness are key- plan on a torque plate hone (which should be done anyway).
The link below is to an '09 article in HR mag on rings. I looked at it previously and saw no glaring inaccuracies, if you want to give it a look-see: