Is the 383 a better engine, or does the 440 just have more displacement?
I did mine as a piece meal years ago before "kits"were readily available. Buddy runs a perf shop(I worked for him for a bit) So I did an Eagle crank(3.900, B engine mains and BB mopar rod journals) 6.760 Manly H-beams(Mopar rod and .990 pin), Diamond pistons. Eddy heads OOTB(springs for cam) and a Comp street solid roller. Kinda odd combo compared to the kits out there now but it runs great on pump swill and didn't break the bank.