My 94' ls motor went down about 2 years ago and I brought a used 95' ls motor... No problem... I wanted to prepare the motor for turbo, so I went ahead and brought JE pistons (low compression) and Eagle Rods and a blockguard. Everything was going well until we noticed that the pistons didn't reach up to the top end of the block... (I think they sold me the wrong ones because I had to bore the block a little) Anyways I left it like that... My car ran just fine... It was a little lazy going up hills etc. I left it like that for about a year... So I finally made turbo on my car, and my question is.... Will the pistons effect my performance????