Look at 440source website. Check out the stroker combos.
I just picked up a .030 383 with a
440source kit, 4.25 stroke, 6.535 rods and 1.32 flat tops.....I found it on Craigslist
I like the longest rod available , with no ring support needed, piston are lite, but not too short.
Look at hughs website, used to be a tech article on this subject , I think it was hughs .
A 440/505 doesn`t have a short piston, no ring support needed and a 7.1 ' rod.
My last 406 sbc needed ring support , ran like a bear had big block power, and was reliable --------
