A couple ways to get where you want to be...
Doing it up nice... with a really great bang for the buck forged piston:
If you zero deck the block (which I'd do anyways) and check/cut the heads to 118cc... SRP #212135 for 4.280 bore, #212136 for 4.310 bore.
Minimal amount of work (no zero deck)... with a lowest end forged piston I'd ever use:
TRW# L2349F-(oversize)
Zero decked w/TRW Piston #L2465F-(oversize)
Hope this helps.