#1  
Old 06-05-2022, 05:37 PM
gtorich gtorich is offline
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Default 66 Gto fan shroud

finally after 22 yrs, got around putting a fan clutch on my car...........i have the ames 15 1/2 shroud plastic one...........have a gap at the top, think i can put something over that , but on the bottom of the shroud the blades are all the way inside...........not sure how you can fix this.

Anyone else run into this, and what they did to fix it.


The fan clutch is a hayden 2747 HD, and the fan is a 7 blade from ames

Thanks

Rich
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  #2  
Old 06-06-2022, 08:01 PM
gtorich gtorich is offline
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lol...............wondering how "Ames" stays in business.............guess im the only one that has bought a shroud from them...........nobody has nothing to add.

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Old 06-06-2022, 08:05 PM
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The shroud is for the small radiator, you have the big radiator. I noticed that immediately

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Old 06-07-2022, 09:32 AM
gtorich gtorich is offline
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Hey 64, thanks for the reply...........the radiator is a champion, i ordered the shroud because i have the 15 1/2 support.............will have to check if the bigger shroud would fit.

Rich

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Old 06-07-2022, 02:16 PM
gtorich gtorich is offline
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Checked with "Ames"..........said i couldnt use the bigger shroud with my 15 1/2 core.

Thanks

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Old 06-07-2022, 03:10 PM
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Not quite sure what's going on here. Although my car is not an apples-to-apples comparison since I have an A/C car with the tall radiator/core support, my fan shroud has a "cutout" where the radiator hose is located, which then allows the shroud to come up to the bottom edge of the top tank and not leave any fins exposed like we are seeing with your car.

What's the part number for your shroud?

Here is a photo of the shroud in my car before restoration.


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Last edited by ZeGermanHam; 06-07-2022 at 03:19 PM.
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Old 06-07-2022, 03:36 PM
gtorich gtorich is offline
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Karl, good to hear from you..........The part # is P151A and i have the 15 1/2 core support.........The rad is a champion alum one.........my car is no air.....the tech from "Ames" said the P152A is for the 17 1/2 core support and wont physically fit in my car......im wondering on the mounting holes for the two shrouds are different.........also wondering if this has some effect on the fitment of my shroud, when i bought the car, the PO cut those fins off where you mount the shroud, i tried to make new fins, doesnt look bad, but i could be off some. lol.............let me get you some measurments of the shroud later

Rich

  #8  
Old 06-07-2022, 05:37 PM
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Measure the height of the finned radiator core while you're in there.

As an aside, it looks like the hose "cutouts" in the shroud are only an A/C car thing, which explains why your shroud doesn't have them. Regardless, I'm curious about the height of your radiator core.

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Old 06-07-2022, 06:22 PM
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Thanks Karl, i will try to get these tomorrow, just hard to measure when everyting is in the way..........

Rich

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Old 06-07-2022, 07:17 PM
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Ok, Karl, for just the finned area on the champion rad looks like 17 3/4........rad width is 25, and the shroud is 27

The opening of my shroud is about 20 inches.............wonder if i could use the a/c fan shroud............but ames says no.

  #11  
Old 06-07-2022, 07:41 PM
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With a 17-3/4" radiator core height, that certainly explains why your non-A/C shroud does not cover the entire radiator. Your radiator is considerably taller than would would normally come in a non-A/C car. The radiator height should be 15-1/2". But since you have a taller radiator installed already, I bet there is a way that you can get the 17-1/2" A/C shroud to fit. You might have to drill some holes in the shroud, but that's easy.

Maybe others here have additional info to the contrary, but I can't think of a reason why the larger shroud wouldn't fit with the larger radiator that you have.

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Old 06-07-2022, 07:51 PM
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I hear ya Karl..............i tried to explain to the "Ames" tech on what im wanting to try, he insisting you cannot use the larger fan shroud...........i told him i have a aftermarket rad, his answer was it doesnt matter, this shroud will not fit.............hoping to hear from some people that have dont this...............just hate to buy another shroud, and bigger fan to boot, and find out this isnt gonna work. lol

Rich

  #13  
Old 06-07-2022, 07:57 PM
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The Ames folks are pretty knowledgeable, so they might have a good reason for saying that it won't fit. Don't take my word as the definitive answer, but given how the shroud mounts to the core support, I don't know what would prevent you from getting the larger shroud and simply drilling new mounting holes to place it where you want it to be.

Curious to hear what other folks here have to say on the matter.

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  #14  
Old 06-10-2022, 01:46 PM
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Rich, I bought a Champion Radiator, PN CC1680, when I built my run stand thinking I might use it in the car later on. It is a 15.5 core & spec'd for 600 HP. I do not think I will use this radiator, at least for for the foreseeable future. If you have any interest I will box it up and ship it to you to see if that corrects the issue you are having, if it does maybe we can work out a swap for your taller one. Just let me know.
Mike Pearson

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  #15  
Old 06-10-2022, 03:47 PM
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Hey Mike, checking with a buddy on his other radiator..........would be a great trade Except with all my screwing around with the shroud, i got quite a few fins messed up. lol

I"ll send you a pm

Rich

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Old 06-21-2022, 02:58 AM
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Might be good to point out that while you do have less cooling than the tall radiator set at stock height with the larger shroud and fan, you still have the same cooling capacity through the non-A/C shroud as a shorter aluminum radiator and your current fan. Figure the additional 2" of fins above the shroud won't do you any good at slow speed, but should be of some additional benefit at freeway speeds over the shorter radiator.

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  #17  
Old 06-23-2022, 10:47 AM
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Quote:
Originally Posted by gtorich View Post
Ok, Karl, for just the finned area on the champion rad looks like 17 3/4........rad width is 25, and the shroud is 27

The opening of my shroud is about 20 inches.............wonder if i could use the a/c fan shroud............but ames says no.
You have the tall rad with the 2" shorter core support ? That would make the rad sit 2" taller then the support & require a custom top rad holder & hood would hit the rad. Is the bottom of the core modified ?

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Old 06-23-2022, 12:02 PM
lemans67 lemans67 is offline
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Default 15 in radiator

Just as a reference, this is my stock shroud for a non AC car with a Cold Case 15in core radiator. Looks the same to me. I thought this was just how they fit.
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Old 06-23-2022, 01:55 PM
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Seems like we are unsure what parts you have.

What is the distance between the bottom and top tanks - 15-1/2 or 17-12?

Does the bottom of the radiator support look like an upside down U or is there a squared off trough that the radiator sits in sort of like this |_| ?

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