Grandfather's 68 SS Camaro.

[WILMASBOYL78]

That fan blade is not a Chevy item as far as I know. The 68 BB had a short water pump and depending on HP rating or options like A/C you could have a fixed 4 blade or a clutch fan with 5 blades. The 4 blade fan would require a spacer to position it properly inside the shroud.

This info is well presented on the CRG page I sent you. Of course, you can adapt to fit your needs...more horsepower usually increases the need for proper cooling system components.

-wilma

[Too Many Projects]

Fan is an aftermarket flex fan. Moves a lot of air, but must howl like the devil above about 3,000 rpm.
In your second pic, 4th and 5th rows down under the upper hose neck, there are letters stamped in the tank. Looks like there are some on the other side too, but a little too dirty to make out in the pic.

[JRC99]

Originally Posted by Too Many Projects

Fan is an aftermarket flex fan. Moves a lot of air, but must howl like the devil above about 3,000 rpm.
In your second pic, 4th and 5th rows down under the upper hose neck, there are letters stamped in the tank. Looks like there are some on the other side too, but a little too dirty to make out in the pic.

Good eye! Stamped I L so it very well could be the original radiator for the car. That fan will be replaced with an OE style. I don't know what brand is on it but I've heard enough stories about the old Flex-A-Lite fans breaking apart that I simply don't trust flex fans.

Unfortunately, I might be blind but I see no numbers on the fan shroud.