C2 fan assy's (w/wo C60; 427,no C60)

[Wayne M.]

As promised yesterday, here's front and back views of the notorious '64-65 C60 fan # 3853943 (see GM dwg reproduced in Noland's Vol 2, pg 218). It's difficult to convey the angles and bends in this piece from a 2-dimensional dwg. Note only 4 rivets per spider (mushroom heads on this '64,-early '65). On this particular unit, there is only the letter "H" stamped on the front hub (seen here at the root of the right-most blade. No stampings on the blades.
First link below is of the backside (no "W" stampings on the spiders).


Second link below is a comparison of two 5-blade fans, to show the slightly different blade angle; the top is fan # 3888366, used for 1966 427's (and '67 also, I think); except C60 big blocks. The bottom is 3770529 for all 327 engines other than C60. Both of these have 5-rivet spiders; you can see the mushroom-head rivets on the '64 fan (bottom) and the flat-head rivets on the top. Stampings on the upper fan, front side are "H", FRONT, and "66" for the last 2 digits of the part #. On the back side, one of the spiders has the letter "W" stamped. On the '64 fan, only "H" appears on the front hub; nothing else front or back. Neither of these fans has stampings on the blades.


Any comments are welcome; sorry I don't have examples or knowledge of any other late C2 fans.

[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

Thanks again Wayne, Even though I only ask about the pulleys I discovered I had one of these hanging in my shop I bought several years ago. It has the flathead rivits with the H on the front. I think mine is a repop but actually looks a lot like your original. I haven`t mastered putting pics on here yet but may try again tomorrow. Thanks, Mike

[James W.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

Wayne,

It look identical to mine, except for the flat head rivets. I'll send you a picture tomorrow of my late '65 production 7-blade fan so that you can post it. Please send me your email address to jwest@oppd.com.

James West

[Michael M.]

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[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

I`ll try again

[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

I think I have figured the pic thing out somewhat. This is what I think is a repop but from the looks of yours not too bad. Flat head rivits, stamped H nd also what appears to be a balancing rivit. I`ll try to get all five pics

[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

Another shot

[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

another

[Michael M.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

The last one

[James W.]

Re: C2 fan assy's (w/wo C60; 427,no C60)

Mike,

That is the same fan that I have on my late production 1965 Corvette. My car is an original L79, a/c equipped car that's been in the family since 1974, all parts on it are what were on when we purchased it. I'd say your fan is correct. I guess I'd like to take some kind of survey of 1965 a/c equipped car owners to find out if there was a running change sometime in the 1965 production year when the fan rivets went from the round or mushroom head rivets as seen in the pictures that Wayne Midcuff posted to the flat rivets that my car has and your've shown in your pictures. I need to look at my 1966 and 1967 Judging Guides to see what kind of description they give for a a/c equipped car.

There always looking for technical articles in the Restorer Magazine, maybe the tree of us should get together and write an article that includes a survey?

Thanks for posting the pictures.

James West

[Michael M.]

James WestOriginal 65 Fan 1

I uploaded these for your James!

[Michael M.]

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[Michael M.]

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[Michael M.]

Re: James WestOriginal 65 Fan 1

number 4

[Michael M.]

Re: James WestOriginal 65 Fan 1

Last One