Bare Bones Budget 400 Build

I gotta find a steel 383 crank. I don't think Mopar ever made an external balanced flywheel for a 383/400, plus that would also solve my pilot bushing issue.

Question - if you use a forged 383 crank with your rods/pistons, does that require everything to be re-balanced? I'd thought the cast 400 crank was lighter than the 383.