1972 318 street build

Most builders use the Keith Black 167's.
DODGE 5.2L/318 MOPAR SMALL BLOCK LA Keith Black/KB Pistons Pistons

Stock rods work fine. Have them reconditioned with new ARP bolts. The stock crank should be cast and can be machined and polished. Otherwise you will need to find or buy a forged crank. All components will need to be balanced.