I found an AC Delco Clutch fan for my 71 455 on all places Amazon.com for $72 bucks brand new and factory sealed in the box. The AC Delco number is 15-4216 for those of you in need of one. I went to the Google search engine and typed in the number and found it. It was easy compared to other things I'm doing with this project. Just thought I'd share the information.. Mike
Mike, I think you may still be able to order that part number from any Delco dealer. I have a local Delco dealer here in Mass that I have bought those from before for about or maybe less than that price. I always am sceptical of stuff on Ebay as stuff is often available elsewhere.
Mike, looks like you did luck out. Rock Auto says that # now discontinued. I may have to cehck my local dealer and see if they have any left on the shelf. Good find.