In need of a small block crankshaft pulley

wouldn't it make more sense to find a smaller fan spacer?

do you still have the A/C set-up?

take a measurement and let me know if you think a 1 inch fan spacer will do the trick for you, I think I have one laying around from a slant 6 which should work for you

(just reread your post, the fan is hitting the pulley? or the radiator?)