Another '64 Pontiac Engine Question

[StevenGuthmiller]

Hi guys.

 

Can anybody tell me for certain what type of fan was used on a standard 1964 Pontiac V-8 engine?

In my searches, it appeared to me that only the higher output engines used a fan with a clutch.

The majority appear to be without.

My question is, what type of fan would a '64 389 4bbl engine have used?

Would it have been a basic 4 bladed fan as used on earlier Pontiac engines?

 

 

 

 

 

 

Steve

[espo]

Couldn't say absolutely if a clutch style fan was standard or not. But any type of heavy-duty cooling system or a car with air conditioning would likely have such a system. 

[StevenGuthmiller]

1 hour ago, espo said:

Couldn't say absolutely if a clutch style fan was standard or not. But any type of heavy-duty cooling system or a car with air conditioning would likely have such a system. 

That was my thought.

Being as I'm building my Bonneville to represent a 389 4BBL without AC, I was assuming the clutchless fan was probably standard.

Although most of the photos that I have been able to find to this point appear to have no clutch, I haven't found much yet with a straight on photo of the fan.

I have brochure information such as these provided by Bill Newcomer, but in most cases, the photos are too small to tell for sure, although it appears obvious that there are different fans between various engine options, and the only options that mention a "de-clutching fan" are the GTO and 421 HO engines.

 

I guess I will consider that the proof that I'm looking for, although I'm still not certain if they would be a 4 bladed fan, or something with more blades.

 

 

 

 

 

Steve

[Bills72sj]

Steve, Since I have the original photo file, I can enlarge/zoom the pic.

Keep in mind the engines above are for 1965.

If a 389 of any type was in a GTO then it got the clutch fan.

If a 389 was in any of the larger Pontiacs, it was a 4 blade fixed fan regardless of HP.

I would go with that.

There are even some 421's that have the 4 blade fan though the diameter was a bit larger.

 

[charlie8575]

Clutch fans were an option, but not common, so the direct-drive fan is most correct for a typical car.

Charlie Larkin