'71 LS-5 fan

[alaskacorvette]

I need to find a correct fan for my '71 LS-5. It does not have air. I believe it has to be 5 blade, 17.5 diameter. I don't know if it has to be a "high pitch" fan or not. Will a mid year BB fan interchange? Any unique marks or stamps? Thanks, Jim.

[gq82]

All air cars 70-72 came with a 7 blade fan w/a part # and date code on one or more blades. LS5 air fan blades are pointed and extend beyond the fan shroud. The fan to clutch bolt hole circle is larger for 71 & 72 fans.

[alaskacorvette]

Sent you a pm.