The fan get's mounted to the clutch, not the water pump pulley....

 

ahhhh what an idiot I am - not the first time - Thanks

 

Thats what I figured was going to be the case just from reading the subject title.

 

I'm surprised the bolt pattern is the same.

 

Pretty sure the correct fan would not bolt to the WP.

 

Sorry guys - I left it loose just to get a feel of the distances from the radiator - wasn't thinking about the set up. But you're right it wouldn't bolt based on the pattern of the fan - I didn't even look when I put it together lol.

 

I have a small block (didn't pay attention to your application but looks like one) but I like using the factory style bolts that have the captive locknut to bolt the fan on. Here's a snip from the NPD website for a few different years. You can use regular short bolts (and I bolt the fan on before I put it in the car, usually). It's just easier if I have to replace it, you don't drop the washer while fiddling with everything.

 

My clutch fan blades are about 3 inches from the radiator with no shroud. Cools just fine in my 1964.5 Mustang w/a modified 350 horse 289.
Guess I could use a spacer to get a bit closer, but I don't have a need to do so.
From your pic, I can't tell how far your fan blades are from the radiator. If it cools OK, i wouldn't worry about it. 😎

 

Thanks KD - I had it positioned wrong - it looks good for now. I'll know if it works when I light the candle on this new build

 

Just finished mine,

 

Just finished mine,
View attachment 842166

Looks good! From one upstater to another lol