ok i spun a rod bearing in my motor last week. i am about to rebuild it. i want to stay n/a. it will be a stock ls block and a stock ls head. should i go with pr3 pistons or usdm itr pistons? what will my comp. ratio be with pr3s and itrs.

thanks for any help

 

Pr3 Comp Ratio=10.8:1
usdm itr piston Comp Ration=10.3:1

 

i have a mint set of used pr3 pistons with rods and three with rings.