[68ragtop]

I just find it funny that I have owned the car for 16 years & only recently realized (because of another thread) that it wasn't original. It also had a more recent 4 row radiator. I know the previous owner had the car in parades & events like that, so I could see a fan like this flowing a little better at slower RPM's & for sure better than the steel 4-blades. Would my build sheet have a code for the fan blade? I have the PHS sheet, but not the original sheet

68RT

[Bobalong]

Originally Posted by 68ragtop

I just find it funny that I have owned the car for 16 years & only recently realized (because of another thread) that it wasn't original. It also had a more recent 4 row radiator. I know the previous owner had the car in parades & events like that, so I could see a fan like this flowing a little better at slower RPM's & for sure better than the steel 4-blades. Would my build sheet have a code for the fan blade? I have the PHS sheet, but not the original sheet

68RT

Curiosity killed the cat, I read this and had to go downstairs and look at my GM flex fan. My seven blade.Looks much like yours in the pic. And you can tell it's a flex because of the thinner metal used for the blade as opposed to the thicker area where the rivets hold the blade.

The guy I bought the car from 25 yrs ago told me he got it from a junkyard GM
car with a tow package (?) Or maybe it just came from the same AC car he was getting the replacement AC parts from. (second owner got rid of the compressor and a few parts) 70 GTO
Nonetheless, which fan is best is like asking which motor oil is best, or 12V battery. It's been said flex fans are very noisy, don't cool as well . . . .but at the end of the day . . . .well, mine cools as well as expected for an air conditioned car, on a 90 Deg day sitting at a prolonged traffic light.
I have been known to turn the compressor off, and fast idle the engine a little to get some circulation of coolant and air. I get puckered when the gauge climbs north of 200. Never had a coolant dump, or the idiot light come on, but still, I get nervous.

I also have a 4 core radiator, spring in the lower rad hose, and the factory covers and stuff to direct incoming air thru the radiator.