You will need new pistons and rings, as well as having the piston pins pressed in by a machine shop when you change them. Also do yourself a favor and get a set of ARP bolts for the rods and some studs for your head... they are fairly inexpensive and good insurance. If you're planning for turbo, get a set of forged low compression SRP pistons (8.5 - 9.0:1) and rings to handle the extra heat and pressure in the cylinders, otherwise stock pistons and rings for NA. Turbo also dictates looser ring gaps and a little more piston to wall clearance. Any competent engine builder can give you these details when Ur ready to build.