Shroud Help
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
Shroud Help
I have a 71 Vette that was originally a big block car, but someone put a 350 in it. I have to replace its fan shroud. The current shroud is a big block shroud, number 3956119, and the radiator is the 27 ½” core model. Can someone tell me if I should stick with the big block shroud or would the small block shroud (3956109) be a better fit and work with the big radiator?
Also, what are the physical differences between the two shrouds?
Thanks.
Also, what are the physical differences between the two shrouds?
Thanks.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
I have a 71 Vette that was originally a big block car, but someone put a 350 in it. I have to replace its fan shroud. The current shroud is a big block shroud, number 3956119, and the radiator is the 27 ½” core model. Can someone tell me if I should stick with the big block shroud or would the small block shroud (3956109) be a better fit and work with the big radiator?
Also, what are the physical differences between the two shrouds?
Thanks.
Also, what are the physical differences between the two shrouds?
Thanks.
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
Hummmmmmmmmmm
I'm not understanding your reply wombvette. The 3956119 shroud and the 350 were in the car when I bought it although it originally was a 454 car. The 3956119 shroud is wasted so I want to replace it when I put the new 350 in it and there will be no A/C and it has a 4-speed trans. So, getting back to my question, will the 3956109 be a better fit with the 350 or do I need to stay with the 3956119 shroud.
Thanks.
Thanks.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
I'm not understanding your reply wombvette. The 3956119 shroud and the 350 were in the car when I bought it although it originally was a 454 car. The 3956119 shroud is wasted so I want to replace it when I put the new 350 in it and there will be no A/C and it has a 4-speed trans. So, getting back to my question, will the 3956109 be a better fit with the 350 or do I need to stay with the 3956119 shroud.
Thanks.
Thanks.
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
Thanks
Thanks wombvette and hugie82.
The reason I'm replacing the one that is there is because someone cut it all the way through on one side plus they did some other trimming, which I cannot understand.
The shroud that was in there is a big block shroud, which is the molded one, and it covers the fan, but I think the reason it does is because the 350 that was in the car had a long water pump, which I do not think is stock. Because the engine was set up for the long water pump I kept it that way on the rebuilt motor that is going in it.
As for choosing the shroud, I am concerned about the small block molded shroud not fitting because of the 27.5 inch core radiator. In fact, I think I just figured it out. I looked in Eckler's catalog and noticed the radiator support is different for the heavy duty radiator. Because of the radiator support difference, and because the shroud bolts up to the support, I then looked at the assembly manual and it "APPEARS" I need to stay with the big block shroud because of the radiator support.
If someone can confirm this it would be greatly appreciated
The reason I'm replacing the one that is there is because someone cut it all the way through on one side plus they did some other trimming, which I cannot understand.
The shroud that was in there is a big block shroud, which is the molded one, and it covers the fan, but I think the reason it does is because the 350 that was in the car had a long water pump, which I do not think is stock. Because the engine was set up for the long water pump I kept it that way on the rebuilt motor that is going in it.
As for choosing the shroud, I am concerned about the small block molded shroud not fitting because of the 27.5 inch core radiator. In fact, I think I just figured it out. I looked in Eckler's catalog and noticed the radiator support is different for the heavy duty radiator. Because of the radiator support difference, and because the shroud bolts up to the support, I then looked at the assembly manual and it "APPEARS" I need to stay with the big block shroud because of the radiator support.
If someone can confirm this it would be greatly appreciated
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I may have a shroud for you. Mine is off an LT1 car so it has the big radiator and is for a small block. It is brand new. I had it on for 1 year and then went to electric fans. I'll check and see if it is the numbers you want.
Crap! I must have sold it. I can't find it but don't remember selling it.
That would probably be the one you are looking for though.
Crap! I must have sold it. I can't find it but don't remember selling it.
That would probably be the one you are looking for though.
Last edited by Gordonm; Oct 23, 2007 at 04:54 PM.
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Melting Slicks
Joined: Sep 2007
Posts: 2,387
Likes: 123
From: CA.
my bb shroud is also cut through on top and bottom. i think previose owner did it for easy removal. it has a bolt on top and bottom with a washer on top and bottom of each to hold it. works great. thanks, nutsy.
Last edited by nutsy; Oct 26, 2007 at 08:21 PM.