383 pulleys....
Imo, or in my case, no shroud needed, I have a factory 22" radiator, stock pulleys, not sure of the size but factory correct original, put a Derale 18" fan on a Hayden clutch, the short one made for Mopars, both from summit.
I don't even have room for a shroud, and when I started a thread on this years ago, that was pointed out to me.
383 tunnel ram, drive it all the time, anywhere, 90+ summer heat.