Hmmm okay thought u were boosting a little more than 10pound seeing as your getting forged Pistons, you could get away with cast hypereuratec Pistons or even the l67 Teflon coated skirt cast iron Pistons? You gave me the wrong Impression lol well I took it wrong anyways.... Still having rebuilt 2 of these I know you can get away from your budget fairly quickly it's all the little things that add up like for instance you'll want new valve springs as the stickers won't have 90lb seat pressure anymore, some new lifters (ls7 are good) pushrods might be cactus a lot of these engines suffer oil starvation up there and the ends of the pushrods get munted, new guides if they're a bit sloppy, valve lapping compound , timing chain replacement new injectors new dfi n coils, sensors, etc etc etc list goes on and suddenly your rebuild is $2000 lol