Fan shroud for aftermarket aluminum radiator

Maybe I'll try another route...

Does anybody know of any dimensions listed for stock A-body fan shrouds? If I could get measurements off of a 318, 340, or 360 fan, I could probably determine whether or not I can adapt one of those to the radiator I have.

If anybody has these numbers or is willing to measure their fan shroud, I'd really appreciate it!

Thanks all.

-Mike