If I were to change my block...

All alluminum block in the F20 engine isn't too bad..although I figured well...therez gotta be something out there better. I'm thinking to drop a Vortech Supercharger or Turbo(I don't know which one) on later times...until than, I wanted to changed some internal engine part. So I figure why not the house first?...is there an oversize block for F20? or is it better to just shave the piston heads? I'm trying to lighten the weight on the block but at the same time, fit a bigger forged pistons. Any part suggestion?

TUNER
:smoker: