I can't find a listing for any fan clutches for my 72 Imperial but I do see them listed for the New Yorker. The radiators appear to be different. The C-body radiator I have in the hot rod bolts to the radiator support. The Imperial radiator attaches to large brackets sticking out from the radiator support with 2 bolts and a pair of pins on the bottom.

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon