Looks like all the correct measurements to be one of the hard to find 67-68 Z28 style fans.
4 rivet blades, 3 1/4" bolt centers, 2 /5/8" center hole, and the correct style schwitzer clutch.
Cha-ching!
__________________
Rick
69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.)
69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan
Don't text and drive.
Somebody's life may depend on it!