.030 is standard and you'll need a complete gasket kit and oil pump and cam if you decide to swap at this time..new timing chain....and once machine shop determines it needs a bore of .030...then buy pistons so they can match bore to pistons and matching rings to pistons and you can reuse your stock rods...and can have them reconditioned if desired
it would be like having a brand new engine, and with the trickflow topend kit, youll be making decent power
why a 75shot? most ppl start with 100shot, and work there way up, from what ive heard the STOCK parts can handle 100shot pretty easy, and ive seen quite a few dyno's where a 150shot jumps HP by 100hp! (in most cases
and keep us updated on your build!