427sharpe,
I'm hugely embarrassed to say that we have a mis-communication
!
I am going to (try to) use serpentine belts. I believe from the numbers and year models you gave that you use v-belts.
For the difference, see the photo (above) that dalola has provided.
I apologize and feel bad for all the work you have done in identifying the part numbers. Hope you won't bear a grudge.
I ordered the pulleys, alt and PS pump today, so in a couple of weeks maybe I can have some answers. I got a 1994 serpentine crank pulley for a 460-equipped F250 with two grooves, a matching single groove water pump pulley, and the alt and PS units from a 1993 Mustang V8. The whole kit came to about $300US so far, plus I'll need to fabricate two brackets.
We'll see
Thanks for all the work,
Tom