69 BB Fan ??

Can anyone help me identify this fan?

It is supposedly from a very early '69 Nova L78...
but it has round head rivets, blades with an "angle" cut
and stamped "FRONT" and "H"

I've never seen another like it.

Thanks guys!

wayne in sunny so cal

I don't believe it's a Nova BB fan.

I can send you pictures of an original one if you'd like.

Allen

Somewhere on this site, there is a thread about these fans and I think there is a number of pics posted on it if I remember right. I just don't remember which section it was in.

Thanks guys!
I know what it is not.
I was hoping someone could tell what is.
Can anyone help?

It was reportedly pulled from a very early '69 L78.
I've been told that it seems to have the design of a '68 L78
but has the LWP bolt pattern of a '69.
The Nova was ordered for a 1968 L78 but the order was delayed
waiting for it's M22 tranny. It wasn't delivered until Feb. 28 1969

Does the '68 fan have the same design as a '69?

It does seem to be unique at least.
Your help will be appreciated.

Thanks guys!
Does the '68 fan have the same design as a '69?

No it used a clutch.

Here is some BB fan history.

1968:

The 68 used a 5 blade fan. It had a 18" Diameter with 2 5/8 dia of clutch shaft hole. The bolt circle diameter for the clutch-to-fan attachment is 3.25-inch.

1969:

The 69 L34 used a different fan. It was also a five blade fan.

The 69 L78 may have used a 4 blade have. Some of the production drawings of the bb show it. However no part number is lised in the AIM. There is a listing in the parts book for a 4 blade BB Fan. Later the L78 used the same fan as the the L34.

The 4 blade part number was replaced for the L78 fan in parts books as of Feb 69. This is a different part number from the 69 L34 5 blade.

1970:

The L34 fan used in 69 L34 and later on the 69 L78 was the same in the 70 L34.

The 70 L78 fan was a new part number. Probably because of the Mark IV 402 engine block. Maybe the higher horse power needed a different fan.

At no time did the Nova BB ever use the 772 7 blade fan. That was reserved for the cars with A/C.

What I need to find is a documeted early model year 69 L78 with original equipment to see the 4 blade fan.

The problem is that people say that the bb should have a 5 blade fan so people change the 4 off.

* I am seeking pictures of these fans that can be tied to a documented car or a part number. The problem is that these fans did not include part numbers. Not even partial numbers.

* Also there is the exact opposite to the 68 BB fan. It is a mirror image of it.

What ever came of this discussion:

I have a 70 Nova 396 car but missing some parts. What is the correct fan?

I am going to spring Carlisle next week looking for parts.

Thanks for your help

Mike

Click on this link to see photos of what the fan looks like: http://www.chevynova.org/BigBock.html

My documented 69 Jan build car has a 5 blade fan without the W stamped on it.I've only heard about 4 blades,but never seen a Canadian L78 car with one yet.