SAAC Forum

The Cars => 1967 Shelby GT350/500 => Topic started by: shelbydoug on March 17, 2018, 06:13:15 PM

Title: 67 GT500 Thermostat housing
Post by: shelbydoug on March 17, 2018, 06:13:15 PM
Is this supposed to be painted or natural as cast? I forgot and I am seeing both ways on engine pics.
I know I have blue paint on the intake manifold where the mask leaked right in that area.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 17, 2018, 06:46:17 PM
Quote from: shelbydoug on March 17, 2018, 06:13:15 PM
Is this supposed to be painted or natural as cast? I forgot and I am seeing both ways on engine pics.
I know I have blue paint on the intake manifold where the mask leaked right in that area.
Painted in place on the aluminum intake.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 17, 2018, 08:29:23 PM
Thank you.
Title: Re: 67 GT500 Thermostat housing
Post by: acman63 on March 17, 2018, 08:56:57 PM
Going to start calling you Mr Concours  Mr. W
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 17, 2018, 09:05:48 PM
Quote from: acman63 on March 17, 2018, 08:56:57 PM
Going to start calling you Mr Concours  Mr. W

You'll never know when I will show up. You're all safe in a group but don't wonder too far away?  ;)
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 17, 2018, 10:24:09 PM
Quote from: acman63 on March 17, 2018, 08:56:57 PM
Going to start calling you Mr Concours  Mr. W
Who would have thought. ;D
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 18, 2018, 08:54:47 AM
So in theory, "we" can take this thermostat housing, "machine off" the cast in plug and paint it. Then "walla!" we have a 67 housing?  ;D
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 18, 2018, 11:18:38 AM
Quote from: shelbydoug on March 18, 2018, 08:54:47 AM
So in theory, "we" can take this thermostat housing, "machine off" the cast in plug and paint it. Then "walla!" we have a 67 housing?  ;D
I am assuming it has the "thumbprint' divot on the other side . If it doesn't there are others that do. I would also machine off the C8 engineering number too. Then you would have something similar not exact.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 18, 2018, 11:38:57 AM
Until someone makes some new ones, it's a consideration. The casual observer just sees the additional casting for the vacuum tree.

The casting numbers are so fine that they tend to get unnoticed.

It's just going to be the Head Judge that needs to have his glasses hidden?

At $35 vs. $500, the difference makes the consideration valid. In fact, they are so rare, I may have to buy an entire car to get the part?

I do think I remember reading of a limited run 5-7 years ago?
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 18, 2018, 11:56:08 AM
Quote from: shelbydoug on March 18, 2018, 11:38:57 AM
Until someone makes some new ones, it's a consideration. The casual observer just sees the additional casting for the vacuum tree.

The casting numbers are so fine that they tend to get unnoticed.

It's just going to be the Head Judge that needs to have his glasses hidden?

At $35 vs. $500, the difference makes the consideration valid. In fact, they are so rare, I may have to buy an entire car to get the part?
I thought Scott Drake made a copy of the C7AE-A thermostat housing? It was in their 2016 Scoot Drake product catalog at 24.95.  It isn't perfect but at least as good as machining the one in your picture and without all of the trouble.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 18, 2018, 12:02:39 PM
Quote from: Bob Gaines on March 18, 2018, 11:56:08 AM
Quote from: shelbydoug on March 18, 2018, 11:38:57 AM
Until someone makes some new ones, it's a consideration. The casual observer just sees the additional casting for the vacuum tree.

The casting numbers are so fine that they tend to get unnoticed.

It's just going to be the Head Judge that needs to have his glasses hidden?

At $35 vs. $500, the difference makes the consideration valid. In fact, they are so rare, I may have to buy an entire car to get the part?

I do think I remember reading  of a limited run maybe 5-7 years ago?


I thought Scott Drake made a copy of the C7AE-A thermostat housing? It was in their 2016 Scoot Drake product catalog at 24.95.  It isn't perfect but at least as good as machining the one in your picture and without all of the trouble.

It is not in the online catalog. Maybe he sold out and isn't making more?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 21, 2018, 08:57:04 PM
Ah! That is the picture of the Scott Drake C7AE-A thermostat housing that I posted above.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 21, 2018, 10:26:20 PM
Quote from: shelbydoug on March 21, 2018, 08:57:04 PM
Ah! That is the picture of the Scott Drake C7AE-A thermostat housing that I posted above.
What a shame . I know a couple years back they had a version without the vacuum fitting stub that was meant for 67. At least it is not expensive, so you can hack away.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 22, 2018, 07:43:23 AM
Quote from: Bob Gaines on March 21, 2018, 10:26:20 PM
Quote from: shelbydoug on March 21, 2018, 08:57:04 PM
Ah! That is the picture of the Scott Drake C7AE-A thermostat housing that I posted above.
What a shame . I know a couple years back they had a version without the vacuum fitting stub that was meant for 67. At least it is not expensive, so you can hack away.

Yes. :'(

In fairness, they are no longer listing that housing in the online catalog. It is just identified currently by the C7AE part number by his current dealers that still have a few.

I'll call 'Drake' later and see what they say about having any of the 'original' batch left. The people I talk to on the phone there tend not to know any more then I do though.

Do you have a picture or can you scan that catalog and post the picture here?

I'm wondering if that picture you are looking at is of an original they were showing before they decided how to make the 'reproduction'?

Machining off the bump on the current one, which is a $20 part, then heavily sandblasting it to get a uniform 'cast' finish seems to be a reasonable alternative?

It does depend on what the internal dimple looks like. Ideally there is none on that 'plug'.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 22, 2018, 11:41:14 AM
Bob. Jerry @ DrakeScott says the one with the casting bump IS the only one that they ever offered.
He does say that that plug is solid all the way through and can be machined off without needing to be welded up.

That sounds like Plan A at the moment.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 22, 2018, 02:27:38 PM
Quote from: shelbydoug on March 22, 2018, 11:41:14 AM
Bob. Jerry @ DrakeScott says the one with the casting bump IS the only one that they ever offered.
He does say that that plug is solid all the way through and can be machined off without needing to be welded up.

That sounds like Plan A at the moment.
I must have assumed it was Drake that made them. It was apparently someone else. It wasn't something I paid much attention to because you could tell that it was made sightly different then original which for that reason another imperfect repro part did not mean anything to me in my world.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 22, 2018, 02:54:05 PM
No need to explain to me. I am grateful for any help or attempt at it.

I don't know how this thing will turn out with the plug cut out of it but it is worth a try?

The only short coming is going to be that it has a C8 casting number in it. The castings numbers are not really very defined and it needs to be painted. How much of that number will be legible remains to be seen or maybe not seen?  :o

Thanks for you input on the subject. I appreciate that. ;)
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 23, 2018, 01:37:55 PM
Can someone post a close up picture of the 67 thermostat housing please? They are so rare, I can't even find a picture of one.
Title: Re: 67 GT500 Thermostat housing
Post by: 67_1183 on March 23, 2018, 01:51:17 PM
I think this is it.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 23, 2018, 01:58:44 PM
It's so ugly, it's beautiful. Thank you for posting.

Now it needs to be date coded too? Shoot me. Please.
Title: Re: 67 GT500 Thermostat housing
Post by: 2112 on March 23, 2018, 05:39:35 PM
Did these come on any other cars like T-Birds?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 23, 2018, 07:47:28 PM
Quote from: 2112 on March 23, 2018, 05:39:35 PM
Did these come on any other cars like T-Birds?

Undoubtedly it does. What? I don't know. MOST FE's use the large diameter thermostat and therefore a different housing.

The 427 Cobras, as far as I know use the large one. The T-birds, same thing.

It's the C7ZX intake manifold that was made to take the small thermostat and caused the issue.

I'm actually a little surprised that they are date coded. They might as well be serial numbered. Most of them apparently went on the 67 GT500's. What other cars in '67 used that intake manifold?

Tick, tick, tick, tick....TIMES UP! I don't think any?  ::)
Title: Re: 67 GT500 Thermostat housing
Post by: silverton_ford on March 23, 2018, 08:27:39 PM
I have found that thermostat housing on pickups in wrecking yards in the past.  Obviously being in a wrecking yard can lead many questions to how it got there....could have been an engine swap years before, who knows...endless possibilities.

I imagine they were on many different models in 1967 due to the A in the part number (C7AE).  Usually base parts were given the Galaxie number and if it was a more specific part then it would have that letter for that car.  Such as C7ZX..... leads me to believe that part is more for Mustangs than any other model.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 23, 2018, 08:56:07 PM
Quote from: shelbydoug on March 23, 2018, 07:47:28 PM
Quote from: 2112 on March 23, 2018, 05:39:35 PM
Did these come on any other cars like T-Birds?

Undoubtedly it does. What? I don't know. MOST FE's use the large diameter thermostat and therefore a different housing.

The 427 Cobras, as far as I know use the large one. The T-birds, same thing.

It's the C7ZX intake manifold that was made to take the small thermostat and caused the issue.

I'm actually a little surprised that they are date coded. They might as well be serial numbered. Most of them apparently went on the 67 GT500's. What other cars in '67 used that intake manifold?

Tick, tick, tick, tick....TIMES UP! I don't think any?  ::)
You are putting the cart before the horse. It wasn't the GT500 that caused things to change. Ford went to the smaller thermostat in 67 production. The books say Dec 66 but there are examples of it a little earlier. The vast majority of 390 Mustang's cast iron intakes got the C7-A thermostat housing . It was a Ford thing not a Shelby thing. SA knew about far enough in advance so as to work with Ford to come up with the C7ZX intake
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 23, 2018, 09:45:51 PM
Quote from: Bob Gaines on March 23, 2018, 08:56:07 PM
Quote from: shelbydoug on March 23, 2018, 07:47:28 PM
Quote from: 2112 on March 23, 2018, 05:39:35 PM
Did these come on any other cars like T-Birds?

Undoubtedly it does. What? I don't know. MOST FE's use the large diameter thermostat and therefore a different housing.

The 427 Cobras, as far as I know use the large one. The T-birds, same thing.

It's the C7ZX intake manifold that was made to take the small thermostat and caused the issue.

I'm actually a little surprised that they are date coded. They might as well be serial numbered. Most of them apparently went on the 67 GT500's. What other cars in '67 used that intake manifold?

Tick, tick, tick, tick....TIMES UP! I don't think any?  ::)
You are putting the cart before the horse. It wasn't the GT500 that caused things to change. Ford went to the smaller thermostat in 67 production. The books say Dec 66 but there are examples of it a little earlier. The vast majority of 390 Mustang's cast iron intakes got the C7-A thermostat housing . It was a Ford thing not a Shelby thing. SA knew about far enough in advance so as to work with Ford to come up with the C7ZX intake

Well, to listen to you, these things are a dime a dozen and as common as cow manure in Texas? Ooo look, there's another one over there! That's at least a dozen I found just today!

Probably about as common as the power steering pulley?  ;)

Maybe there's one guy hoarding them? A 400 pound guy in his underwear living in the basement of his mother's house in New Jersey? I'll ask Trump. He'll know? LOL! ;D
Title: Re: 67 GT500 Thermostat housing
Post by: Shelbypat on March 23, 2018, 10:34:38 PM
Mansfield is listed for C7AE-A housing without stub.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 23, 2018, 10:58:50 PM
Quote from: shelbydoug on March 23, 2018, 09:45:51 PM
Quote from: Bob Gaines on March 23, 2018, 08:56:07 PM
Quote from: shelbydoug on March 23, 2018, 07:47:28 PM
Quote from: 2112 on March 23, 2018, 05:39:35 PM
Did these come on any other cars like T-Birds?

Undoubtedly it does. What? I don't know. MOST FE's use the large diameter thermostat and therefore a different housing.

The 427 Cobras, as far as I know use the large one. The T-birds, same thing.

It's the C7ZX intake manifold that was made to take the small thermostat and caused the issue.

I'm actually a little surprised that they are date coded. They might as well be serial numbered. Most of them apparently went on the 67 GT500's. What other cars in '67 used that intake manifold?

Tick, tick, tick, tick....TIMES UP! I don't think any?  ::)
You are putting the cart before the horse. It wasn't the GT500 that caused things to change. Ford went to the smaller thermostat in 67 production. The books say Dec 66 but there are examples of it a little earlier. The vast majority of 390 Mustang's cast iron intakes got the C7-A thermostat housing . It was a Ford thing not a Shelby thing. SA knew about far enough in advance so as to work with Ford to come up with the C7ZX intake

Well, to listen to you, these things are a dime a dozen and as common as cow manure in Texas? Ooo look, there's another one over there! That's at least a dozen I found just today!

Probably about as common as the power steering pulley?  ;)

Maybe there's one guy hoarding them? A 400 pound guy in his underwear living in the basement of his mother's house in New Jersey? I'll ask Trump. He'll know? LOL! ;D
No the 67 only FE thermostat housings were much more common relatively speaking then the P/S pulley's used on the 67 GT500 given the number of 67 390 Mustangs and other models that had the thermostat housing but did not use the rare non air P/S GT 500 pulley or the ultra rare A/C P/S pulley GT 500 . ;)
Title: Re: 67 GT500 Thermostat housing
Post by: 2112 on March 24, 2018, 01:47:14 AM
Quote from: Shelbypat on March 23, 2018, 10:34:38 PM
Mansfield is listed for C7AE-A housing without stub.

Is that a reproduction?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 24, 2018, 07:33:33 AM
Quote from: Shelbypat on March 23, 2018, 10:34:38 PM
Mansfield is listed for C7AE-A housing without stub.

Mansfield has ALWAYS had it LISTED, but has never had any when I called to check and that has been the situation for years.

The availability of the housings now is not consistent with what the production numbers of '67 390's is supposed to be. Even when I find an iron intake for sale, I have never found the seller to have the housing also.

By the same token when looking at '67 Mustangs and Cougars for sale now, 390's by comparison to 289's are not common.

I've got the pulley. The housing is just very evasive.

'67 specific FE parts in general are not common at all. The 2v iron intake may be the most common part along with the 2v/4v balancer.

To find a date coded '67 housing is like the odds of winning Powerball. Someone will, but it's only one chance in 330 million.

I guess I just raised the price of these things again?  >:(

I can envision a scenario where many just got trash canned in the process of changing thermostats and installing new '68 type housings? That right there was probably a very common thing to do even under warranty at the servicing dealers in the day? Parts managers being what they are would carry one part, the '68 part, to cover two years.

Ford says that ALL '67 fe's use this housing. OK. Again. Where the heck are they all?
Title: Re: 67 GT500 Thermostat housing
Post by: Vcode on March 28, 2018, 06:33:56 AM
Saw this on Ebay - Will this work?
It a C5 housing.

https://www.ebay.com/itm/1965-1966-Ford-Galaxie-Fairlane-Mercury-ORIG-FE-390-410-428-THERMOSTAT-HOUSING/162968617497?epid=6006353255&hash=item25f1afc219:g:ItkAAOSwk~NZ07sm&vxp=mtr
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 28, 2018, 06:39:27 AM
Not on a 67 or later manifold. That is for the large diameter thermostat.
Title: Re: 67 GT500 Thermostat housing
Post by: Vcode on March 28, 2018, 08:16:34 AM
Quote from: shelbydoug on March 28, 2018, 06:39:27 AM
Not on a 67 or later manifold. That is for the large diameter thermostat.

oh - your right you need the smaller hole size.
Sorry.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on March 28, 2018, 10:30:22 AM
To those reading, the C5 larger thermostat housing (ebay link) without the vacuum tree fitting when compared to the C7 housing (Mansfield link) is different in appearance .  The C5 housing is very common and is what typically gets used on a 67 GT500. It becomes very obvious which one you have once you know (by comparing the two) what the differences are.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on March 31, 2018, 09:10:14 PM
Doug, I have a modified Ford C8 casting that was without the vacuum port threading I modified for use on my Shelby. I found an original, and removed it from my vehicle if interested. I even went to the trouble of mimicking the cast texture where it was ground off. There is no internal "dimple". So there is no chance of failure due to thin material. PM me if you're interested.

                                                                              -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on April 01, 2018, 07:17:39 AM
Quote from: 1967 eight barrel on March 31, 2018, 09:10:14 PM
Doug, I have a modified Ford C8 casting that was without the vacuum port threading I modified for use on my Shelby. I found an original so It was never used if interested. I even went to the trouble of mimicking the cast texture where it was ground off. There is no internal "dimple". So there is no chance of failure due to thin material. PM me if you're interested.

                                                                              -Keith

Do you have some pictures?
Title: Re: 67 GT500 Thermostat housing
Post by: Vcode on February 12, 2019, 12:11:46 PM
Quote from: shelbydoug on March 28, 2018, 06:39:27 AM
Not on a 67 or later manifold. That is for the large diameter thermostat.

just saw this on Ebay

https://www.ebay.com/itm/1967-FORD-MUSTANG-WATER-NECK-THERMOSTAT-HOUSING-390-428-ALUMINUM-C7AE-8592-A/292958943588?epid=658152049&hash=item4435b6b964:g:zNsAAOSwc9ha-zon:rk:1:pf:1&vxp=mtr&frcectupt=true
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 12, 2019, 12:16:13 PM
Quote from: Vcode on February 12, 2019, 12:11:46 PM
Quote from: shelbydoug on March 28, 2018, 06:39:27 AM
Not on a 67 or later manifold. That is for the large diameter thermostat.

just saw this on Ebay

https://www.ebay.com/itm/1967-FORD-MUSTANG-WATER-NECK-THERMOSTAT-HOUSING-390-428-ALUMINUM-C7AE-8592-A/292958943588?epid=658152049&hash=item4435b6b964:g:zNsAAOSwc9ha-zon:rk:1:pf:1&vxp=mtr&frcectupt=true

That's the Scott Drake version which is not accurate at all, but thanks Vcode.

The originals look like this.

Now here's the thing, not only were there seemingly like 100 of these things made, they are date coded! So you want one that is something like 2, 3 or 4 weeks before the Ford build date. This may be THE most difficult part to find for a 67 GT500 ? You can get one but you have to buy the entire car to get it.

I need one that is dated May 1967. I can't even find one made in 1967. So far they are all November 1966. So "good luck" on YOUR search!

To think how many got tossed because when the thermostat got changed out, someone cracked the dam thing?  :'(

I don't think they were ever serviced by Ford. What you got was the '68 version with a plug in it.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 12, 2019, 12:26:17 PM
This is the Scott Drake part.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 12, 2019, 01:29:35 PM
I have a factory 68 on style that wasn't tapped that I reworked and then restored the cast texture if anyone is in need.  I used it until I stumbled on a NOS housing about three years ago.
                                                                -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 12, 2019, 01:41:15 PM
Quote from: Vcode on March 28, 2018, 06:33:56 AM
Saw this on Ebay - Will this work?
It a C5 housing.

https://www.ebay.com/itm/1965-1966-Ford-Galaxie-Fairlane-Mercury-ORIG-FE-390-410-428-THERMOSTAT-HOUSING/162968617497?epid=6006353255&hash=item25f1afc219:g:ItkAAOSwk~NZ07sm&vxp=mtr

No, the C5 housing is the large thermostat. The C5 and C8 housing are in abundance. Good luck fining one in useable condition. I looked for years. I was talking to Bob at Mansfield Mustang. He hasn't had a C7 housing in years. You don't even stumble on them at part swap meets anymore. They are a 1 year housing. If you are converting a C8 housing you need to find one that was not tapped. They are hollow on the outside. They still take hours to convert. I used a nail and a jewelers hammer to put the casting texture back into the aluminum housing.
                                                                                                  -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 12, 2019, 02:03:38 PM
Quote from: 1967 eight barrel on February 12, 2019, 01:41:15 PM
Quote from: Vcode on March 28, 2018, 06:33:56 AM
Saw this on Ebay - Will this work?
It a C5 housing.

https://www.ebay.com/itm/1965-1966-Ford-Galaxie-Fairlane-Mercury-ORIG-FE-390-410-428-THERMOSTAT-HOUSING/162968617497?epid=6006353255&hash=item25f1afc219:g:ItkAAOSwk~NZ07sm&vxp=mtr

No, the C5 housing is the large thermostat. The C5 and C8 housing are in abundance. Good luck fining one in usuable condition. I looked for years. I was talking to Bob at Mansfield Mustnag. He hasn't had a housing in years. You don't even stumble on them at part swap meets anymore. They are a 1 year housing. If you are converting a C8 housing you need to find one that was not tapped. They are hollow on the outside. They still take hours to convert. I used a nail and a jewelers hammer to put the casting texture back into the aluminum housing.
                                                                                                  -Keith

You need to make an instructional video. Your procedure may be my best hope?
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 12, 2019, 02:17:07 PM
Doug, I still have the one I converted in my spares. I will take pictures and I will offer it for sale here. 

                                                                                              -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 12, 2019, 03:10:22 PM
Quote from: 1967 eight barrel on February 12, 2019, 02:17:07 PM
Doug, I still have the one I converted in my spares. I will take pictures and I will offer it for sale here. 

                                                                                              -Keith

Sure. What does it look like? I bought one to do exactly what you did. You might save me the effort.

The thing about these housings, when the hose is on it, the hose covers the C7 part.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 13, 2019, 12:17:58 AM
You could probably bead blast it. When you paint it blue it probably wouldn't show.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 13, 2019, 07:45:56 AM
Quote from: 1967 eight barrel on February 13, 2019, 12:17:58 AM
You could probably bead blast it. When you paint it blue it probably wouldn't show.

Necessity is the mother of invention.
Title: Re: 67 GT500 Thermostat housing
Post by: tonys_shelby on February 13, 2019, 09:18:18 AM
so I'm a little unsure now of what thermostat the reproduction Scott Drake C8 casting should use the large FE style or smaller small block style?
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 13, 2019, 09:33:15 AM
It's not a small block thermostat. The Thermostat diameter changed in '66.  The housing offered by Drake fits 66 on FE. It's just not correct because it has the port boss cast onto the housing.
                                                                           -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on February 13, 2019, 11:35:03 AM
Quote from: tonys_shelby on February 13, 2019, 09:18:18 AM
so I'm a little unsure now of what thermostat the reproduction Scott Drake C8 casting should use the large FE style or smaller small block style?
To recap, the thermostat size changed to the smaller size on all Mustang BB in approximate Dec of 1966 according to Ford documents so there is a +and -period .The C5 marked thermostat housing which is designed for the large thermostat is the typical replacement on a 67 GT500 because it is so common. The correct thermostat housing for 67 GT500 is a C7 marked thermostat designed for the smaller thermostat just like all BB housings Ford made after . It was also used on 390 Mustangs and Cougars. The C8 marked Scott Drake repro is made for the smaller thermostat.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 13, 2019, 11:42:34 PM
This is the correct 1967 Shelby T-stat housing courtesy my Shelby.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on February 13, 2019, 11:49:27 PM
Quote from: 1967 eight barrel on February 13, 2019, 11:42:34 PM
This is the correct 1967 Shelby T-stat housing courtesy my Shelby.
That sure is a nice one.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 14, 2019, 12:08:31 AM
Thanks, Bob. I looked for one for years in serviceable condition.
                                                        -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: 67GT500#1594 on February 14, 2019, 12:53:53 PM
Well, I felt like I won the lottery with the one I found on eBay!! It's not perfect BUT it's right! The seller had two actually. The other one was corroded badly and that one had a reserve? Mine didn't and some how, miraculously I stole it for $110, no reserve? He clearly made the listing mistake and knew what they were worth. Some days you just get lucky. Sorry, it's not for sale.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 14, 2019, 04:55:57 PM
Quote from: 67GT500#1594 on February 14, 2019, 12:53:53 PM
Well, I felt like I won the lottery with the one I found on eBay!! It's not perfect BUT it's right! The seller had two actually. The other one was corroded badly and that one had a reserve? Mine didn't and some how, miraculously I stole it for $110, no reserve? He clearly made the listing mistake and knew what they were worth. Some days you just get lucky. Sorry, it's not for sale.

What is the date code on yours and does it match up to your build date? They come up so rarely it's difficult to say what a fair price is? $110 is a great buy. I heard about $275 BUT that was last years price. It's like a SPEC case. When one comes up, you have to buy it if you need one.

I personally could do without heat for a month, but this is a tough winter and the pipes will freeze up without it. So timing is important.

The quality of those castings was never great even new.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 14, 2019, 05:52:04 PM
Doug, the one on my vehicle was an NOS unit. I was actually concerned about the pourosity in the casting.  The painted example is pretty pitted where the hose covers and at the edge. However, 110.00 is a steal.  I saw a  C60A-D bell housing go for 700.00 on Ebay.  Crazy money compared to the 2-250.00 mark just a few months ago.
                                                                          -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: 67GT500#1594 on February 14, 2019, 07:45:05 PM
I'll check the date code but even the part numbers are barely there. As my buddy would say "any port in the storm"... These guys are so hard to find I just had to jump on it.

I knew a local guy that had a deal over the years with a junk yard and FE motors. He would get every FE motor that came through their yard. Over the years he amounted A LOT of very interesting engines and parts. Before I knew just how hard these were to find I remember he had 40-50 of all kinds of housings just hanging on a wire!! I went back last year, he's gone, house, garage, everything!!!

Between these housings and the correct 500 clutch fork, it will drive you crazy!!
Title: Re: 67 GT500 Thermostat housing
Post by: 67GT500#1594 on February 14, 2019, 07:58:05 PM
I just checked and without bead blasting everything off, I think it says "67"??

I'm not totally sure? Yes, mine is slightly pitted but that's an easy fix and will be covered by the hose in the same area. Boy, a NOS one, now THAT is hard to beat!! I'm pretty sure there supposed to be painted blue as they came from Ford like that and Shelby just added the intake and blue bolts for the intake as well?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 14, 2019, 07:59:55 PM
Quote from: 1967 eight barrel on February 14, 2019, 05:52:04 PM
Doug, the one on my vehicle was an NOS unit. I was actually concerned about the pourosity in the casting.  The painted example is pretty pitted where the hose covers and at the edge. However, 110.00 is a steal.  I saw a  C60A-D bell housing go for 700.00 on Ebay.  Crazy money compared to the 2-250.00 mark just a few months ago.
                                                                          -Keith

Don't misunderstand...I agree with you. I still haven't seen a bell that I can use, i.e., May '67. As a matter of fact, I see everything but 67 bells. I'm using an old style scattershield. It only has the bolt holes for the block. That's old.

The original quality of those thermostat housings was never great. They were never as good as Scott Drakes.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 14, 2019, 08:09:15 PM
Quote from: 67GT500#1594 on February 14, 2019, 07:58:05 PM
I just checked and without bead blasting everything off, I think it says "67"??

I'm not totally sure? Yes, mine is slightly pitted but that's an easy fix and will be covered by the hose in the same area. Boy, a NOS one, now THAT is hard to beat!! I'm pretty sure there supposed to be painted blue as they came from Ford like that and Shelby just added the intake and blue bolts for the intake as well?

Not sure? Hum? I'm thinking I'm getting out the grinder and working on that Scott Drake part? I could consider that therapy which I obviously even to me, could use?  ;)
Title: Re: 67 GT500 Thermostat housing
Post by: 67GT500#1594 on February 14, 2019, 08:39:54 PM
There's always this one...
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F202554359385

A very nice set up but pricey!! I need the carb spring bracket and brake booster fittings.

I was able to find a bellhousing with a Dec 66 date for my March build. That's the closest I've found in 6 years of looking. Still, the clutch fork eludes me!!!
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on February 14, 2019, 10:52:52 PM
Quote from: 67GT500#1594 on February 14, 2019, 07:58:05 PM
I just checked and without bead blasting everything off, I think it says "67"??

I'm not totally sure? Yes, mine is slightly pitted but that's an easy fix and will be covered by the hose in the same area. Boy, a NOS one, now THAT is hard to beat!! I'm pretty sure there supposed to be painted blue as they came from Ford like that and Shelby just added the intake and blue bolts for the intake as well?
The intake was installed at Ford. It was not added . It was assembled on the engine from the get go. You have to disassemble the entire top end of the engine to change the intake unlike the SB . The intake had a mask installed prior to painting of the engine to help keep paint off of the aluminum intake. The thermostat housing and the waterpump bypass were areas that didn't get covered with the mask so they got engine paint. I am not near my picture files so maybe JD or another can post a picture.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 15, 2019, 07:07:32 AM
Quote from: 67GT500#1594 on February 14, 2019, 08:39:54 PM
There's always this one...
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F202554359385

A very nice set up but pricey!! I need the carb spring bracket and brake booster fittings.

I was able to find a bellhousing with a Dec 66 date for my March build. That's the closest I've found in 6 years of looking. Still, the clutch fork eludes me!!!

He has the air cleaner too for $2500. I think the seller is an example of "gold miners" panning at garage sales and over valuing gold as platinum? The problem is every time this happens, it makes everyone pause and fearful of offering one for sale for fear of screwing themselves for selling it too low.

I look at it as I might have to buy back my own part if I sell it and I simply won't be able to afford it. Like selling your 427 Cobra for $5,000 years ago and wanting to buy it back now but now it's a million?

In any case, those, the thermostat housing and the bell, agreed, are two items that are so scarce, that no one is sure that they weren't just made in batches and not every month of every year had them produced. Maybe there are no  first half 67's made at all? Not likely but could be the answer?

Where the heck are they? ONLY on '67 GT500's?


I'm sure glad my SPEC is here and dumb as s that I can be didn't sell it for $400. For sure there ain't no way I'm going $4100 for a case. I'd rather krazy glue the SPEC letter on to another housing!
Title: Re: 67 GT500 Thermostat housing
Post by: Bigblock on February 15, 2019, 10:34:58 AM
Quote from: Bob Gaines on February 13, 2019, 11:35:03 AM
To recap, the thermostat size changed to the smaller size on all Mustang BB in approximate Dec of 1966 according to Ford documents so there is a +and -period .

My Nov. 66 build 390 has the large thermostat. Would just buy a stat for a 66 Ford/Tbird.
Title: Re: 67 GT500 Thermostat housing
Post by: George Schalk on February 15, 2019, 11:09:31 AM
Quote from: Bob Gaines on February 14, 2019, 10:52:52 PM
Quote from: 67GT500#1594 on February 14, 2019, 07:58:05 PM
I just checked and without bead blasting everything off, I think it says "67"??

I'm not totally sure? Yes, mine is slightly pitted but that's an easy fix and will be covered by the hose in the same area. Boy, a NOS one, now THAT is hard to beat!! I'm pretty sure there supposed to be painted blue as they came from Ford like that and Shelby just added the intake and blue bolts for the intake as well?
The intake was installed at Ford. It was not added . It was assembled on the engine from the get go. You have to disassemble the entire top end of the engine to change the intake unlike the SB . The intake had a mask installed prior to painting of the engine to help keep paint off of the aluminum intake. The thermostat housing and the waterpump bypass were areas that didn't get covered with the mask so they got engine paint. I am not near my picture files so maybe JD or another can post a picture.
Here are some pics of 2 different restored '67 GT500's using the over-spray technique similar to what was done at the factory.  The pics show how the thermostat housing and surrounding items are supposed to be painted blue with the engine block.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 15, 2019, 11:15:48 AM
Mine only has not even a 1/10th of that. Jst a spot of blue. Judging by mine, that car is drastically over stated.

I do like the pic of the thermostat housing though. Goes to show me even the date code doesn't show assembled? Unless that's a counterfeit? Hum? Someone's getting tricky.
Title: Re: 67 GT500 Thermostat housing
Post by: George Schalk on February 15, 2019, 11:30:34 AM
The intake that is currently on Ebay does show some signs of, what appears to be, "factory" blue over-spray and not the replicated version. 
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 15, 2019, 11:34:44 AM
Quote from: George Schalk on February 15, 2019, 11:30:34 AM
The intake that is currently on Ebay does show some signs of, what appears to be, "factory" blue over-spray and not the replicated version.

Key word being "traces".

Some nail polish remover will take that right off with a thermostat change? It does look like that thermostat housing was never off the car from new? Interesting.  ;)
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 15, 2019, 11:47:03 AM
That "blue mess" above is someones interpretation.  I would never mess up a beautiful new build like that and I have seen many T/O intakes with almost NO blue on them and those on unmolested examples. I also don't bead blast intakes. I take them and have them tanked in an aluminum tank where aircraft engines are rebuilt and sit for a few days. They look new. 
As for the poster, OE accelerator return spring brackets are far and few between. The manufacturer's hallmark is on the bottom, which is a G in brackets.
Mansfield Mustang offers the spring, bracket and the booster tube.  The one NPD sells is not correct and is a J shape, which looks like a standard 390 offering.
                                                                                                    -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: tonys_shelby on February 15, 2019, 12:25:24 PM
Keith, I feel so much like a newbie when I read your posts I'm laughing! I don't know what a T/O is I thought it was throw out: bearing and don't know what a "G" in brackets means.  :-[
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on February 15, 2019, 12:41:00 PM
Quote from: 1967 eight barrel on February 15, 2019, 11:47:03 AM
That "blue mess" above is someones interpretation.  I would never mess up a beautiful new build like that and I have seen many T/O intakes with almost NO blue on them and those on unmolested examples. I also don't bead blast intakes. I take them and have them tanked in an aluminum tank where aircraft engines are rebuild and sit for a few days. They look new. 
As for the poster, OE accelerator return spring brackets are far and few between. The manufacturer's hallmark is on the bottom, which is a G in brackets.
Mansfield Mustang offers the spring, bracket and the booster tube.  The one NPD sells is not correct and is a J shape, which looks like a standard 390 offering.
                                                                                                    -Keith

Jim Cowls has good ones. Inquire with him.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 15, 2019, 02:30:43 PM
I have all my original brackets and tubing. I did have to buy a repro return spring however.
                                                                                      -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on February 25, 2019, 08:13:10 PM
Quote from: tonys_shelby on February 15, 2019, 12:25:24 PM
Keith, I feel so much like a newbie when I read your posts I'm laughing! I don't know what a T/O is I thought it was throw out: bearing and don't know what a "G" in brackets means.  :-[

Tony, I posted a picture of my original return spring bracket, but I think it was lost during the crash of the original forum. I will try and see if It's on my perosnal laptop. American doesn't like me filling up issue laptops with Shelby pictures.  ;D
                                                                                                                     -Keith
Title: Re: 67 GT500 Thermostat housing
Post by: 67GT500#1594 on March 10, 2019, 05:04:37 PM
Well, while we all slept, some lucky buyer snagged this item...

WOW!!
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 10, 2019, 06:19:53 PM
8594 is the basic part number of a thermostat housing. That's a bellhouse basic. Probably why it went mostly unnoticed. It did get sold and surprising that it was posted as a $30 buy it now.

Someone did find it but it wasn't me. Wait til somne tells Joe Galaxie what he could have gotten for it?  ;D

I do remember getting a mint original 68 S8MS carb for $150. Odd thing was that no one seemed to want it but me?
Title: Re: 67 GT500 Thermostat housing
Post by: Mike James on March 11, 2019, 11:02:48 PM
That was listed with the wrong engineering number right?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on March 12, 2019, 07:03:56 AM
Quote from: Mike James on March 11, 2019, 11:02:48 PM
That was listed with the wrong engineering number right?

Yes. Probably Joe Galaxie couldn't read it correctly off of the housing? They aren't great castings and they corrode quickly.
Title: Re: 67 GT500 Thermostat housing
Post by: 68stangcjfb on June 08, 2019, 03:36:42 AM
Realistically, what is the going rate for one of these in good condition?
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on June 08, 2019, 08:08:54 AM
"Realistically"? THERE IS NO PRICE BOOK ON PARTS. If you are selling, you ask a price that you think it is worth. If you are buying you spend what you can. PERIOD.

To state a price here is just setting in motion a bunch of price scalpers who think they have a million dollar item.

If you want one. Place a "wanted to buy" ad. There are some here that do have some for sale. They will contact you in a PM and make you an offer. The same, if you are selling.

Eventually what will probably happen is one of the reproduction companies like Drake or Blue Thunder will make a fairly accurate reproduction. At that point if you paid a million for it, it will become apparent that you likely had paid too much?  ;)
Title: Re: 67 GT500 Thermostat housing
Post by: tonys_shelby on June 08, 2019, 09:42:01 AM
I just purchased one for $250 if that helps.
Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on June 08, 2019, 11:54:00 AM
Quote from: shelbydoug on June 08, 2019, 08:08:54 AM
"Realistically"? THERE IS NO PRICE BOOK ON PARTS. If you are selling, you ask a price that you think it is worth. If you are buying you spend what you can. PERIOD.

To state a price here is just setting in motion a bunch of price scalpers who think they have a million dollar item.

If you want one. Place a "wanted to buy" ad. There are some here that do have some for sale. They will contact you in a PM and make you an offer. The same, if you are selling.

Eventually what will probably happen is one of the reproduction companies like Drake or Blue Thunder will make a fairly accurate reproduction. At that point if you paid a million for it, it will become apparent that you likely had paid too much?  ;)
Drake made a very close looking reproduction a few years back but discontinued it for unknown reasons.
Title: Re: 67 GT500 Thermostat housing
Post by: 68stangcjfb on June 08, 2019, 12:30:20 PM
Quote from: shelbydoug on June 08, 2019, 08:08:54 AM
"Realistically"? THERE IS NO PRICE BOOK ON PARTS. If you are selling, you ask a price that you think it is worth. If you are buying you spend what you can. PERIOD.

To state a price here is just setting in motion a bunch of price scalpers who think they have a million dollar item.

If you want one. Place a "wanted to buy" ad. There are some here that do have some for sale. They will contact you in a PM and make you an offer. The same, if you are selling.

Eventually what will probably happen is one of the reproduction companies like Drake or Blue Thunder will make a fairly accurate reproduction. At that point if you paid a million for it, it will become apparent that you likely had paid too much?  ;)

I asked what I thought was a simple, non combative question. I have one in good condition. I don't need it for anything I own or plan on owning anytime soon. I would just like to get a fair price for it. I'm not a parts dealer. Recently I brought a part to a show for sale for what I knew was a good price because I got a good deal on it and I didn't want to beat anybody over the head. Someone comes over and chews me down 30% more with a sob story of how he really really needs the part for his project. So I sell it to him just to see him in another show with MY part for DOUBLE what I was originally asking for it. People like that ruin the hobby for everybody else. Ok. My venting is over.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on June 08, 2019, 01:38:40 PM
Quote from: 68stangcjfb on June 08, 2019, 12:30:20 PM
Quote from: shelbydoug on June 08, 2019, 08:08:54 AM
"Realistically"? THERE IS NO PRICE BOOK ON PARTS. If you are selling, you ask a price that you think it is worth. If you are buying you spend what you can. PERIOD.

To state a price here is just setting in motion a bunch of price scalpers who think they have a million dollar item.

If you want one. Place a "wanted to buy" ad. There are some here that do have some for sale. They will contact you in a PM and make you an offer. The same, if you are selling.

Eventually what will probably happen is one of the reproduction companies like Drake or Blue Thunder will make a fairly accurate reproduction. At that point if you paid a million for it, it will become apparent that you likely had paid too much?  ;)

I asked what I thought was a simple, non combative question. I have one in good condition. I don't need it for anything I own or plan on owning anytime soon. I would just like to get a fair price for it. I'm not a parts dealer. Recently I brought a part to a show for sale for what I knew was a good price because I got a good deal on it and I didn't want to beat anybody over the head. Someone comes over and chews me down 30% more with a sob story of how he really really needs the part for his project. So I sell it to him just to see him in another show with MY part for DOUBLE what I was originally asking for it. People like that ruin the hobby for everybody else. Ok. My venting is over.

It has NOTHING TO DO WITH BEING COMBATIVE. Ask what you want for it.

As far as selling it for too reasonable a price and having it resold for more, I learned that 40 years ago. I've seen items purchased on the same day and place and put up for sale for much higher prices.

The issue is, there really is NO GOING RATE.


I just had a guy tell me, "look. I do this for a living. That's what this thing is worth." Really? Is it in the Kelly Blue Book?

I was interested in a 67 428 bell house. It was being advertised for $725. I made him an offer for $375. To say the least, he got really effing nasty. He wound up selling it six weeks later for $400.

There is NO BOOK VALUE on anything like this.


I wouldn't expect to be able to get a thermostat housing for $250 today. I would think I'd probably have to go to about $375 BUT for that it better be to die for and with a very legible and "correct for me" casting date. With these housings you have to take what you can get. That's the rub.

...and yes, it isn't uncommon for some to want more than $500 for them.


Personally I'd go for a reproduction. Few are going to crawl in there and read the casting numbers. Not sane people anyway.  :o

Mr.Gaines delegates that out to one of the assistant judges.  The hose covers half of the casting number and the only thing you can see is the dimple for the casting date and that is often illegible anyway?  ;D


I'd think that you would need to post high resolution pics showing the condition and the casting date details. A lot of those period castings are now porous through the casting itself. If they are, they will pressure test good and will develop a drip that you can't find. Then what do you do with your $500 housing?
Title: Re: 67 GT500 Thermostat housing
Post by: 68stangcjfb on June 10, 2019, 04:50:58 PM
For those interested in the thermostat housing, it has been sold.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on June 17, 2019, 01:51:38 PM
That's a C8AE. He has it listed as such. It's also not as easy as machining. I used an OE C8AE  that hadn't been threaded for the vacuum fitting.
It requires hand shaping. I then restored the texture so it matched the porous texture on the housing then blasted it a second time to blend.
It takes hours to make it look identical. The Scott Drake offering won't get it done.
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on June 17, 2019, 02:25:33 PM
Quote from: 1967 eight barrel on June 17, 2019, 01:51:38 PM
That's a C8AE. He has it listed as such. It's also not as easy as machining. I used an OE C8AE  that hadn't been threaded for the vacuum fitting.
It requires hand shaping. I then restored the texture so it matched the porous texture on the housing then blasted it a second time to blend.
It takes hours to make it look identical. The Scott Drake offering won't get it done.

Did you take pictures of how yours came out? I promise I won't make any snide remarks or embarrass you?  ;)

I think what Bob was referring to is that Drake actually had made a very small run of the '67 housings and just discontinued them in favor of undrilled 68 castings? I don't think that I ever heard of an explanation as to why but maybe it's just something simple like the molds broke and to sell a few to wackos like me just isn't worth it?

Title: Re: 67 GT500 Thermostat housing
Post by: Bob Gaines on June 17, 2019, 02:48:18 PM
Quote from: shelbydoug on June 17, 2019, 02:25:33 PM
Quote from: 1967 eight barrel on June 17, 2019, 01:51:38 PM
That's a C8AE. He has it listed as such. It's also not as easy as machining. I used an OE C8AE  that hadn't been threaded for the vacuum fitting.
It requires hand shaping. I then restored the texture so it matched the porous texture on the housing then blasted it a second time to blend.
It takes hours to make it look identical. The Scott Drake offering won't get it done.

Did you take pictures of how yours came out? I promise I won't make any snide remarks or embarrass you?  ;)

I think what Bob was referring to is that Drake actually had made a very small run of the '67 housings and just discontinued them in favor of undrilled 68 castings? I don't think that I ever heard of an explanation as to why but maybe it's just something simple like the molds broke and to sell a few to wackos like me just isn't worth it?
Yes, Scott Drake made a fairly close replica of the C7AE casting. Unfortunately it has been discontinued.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on June 18, 2019, 12:27:17 PM
I posted it twice with pictures. Even described how it was done and re-texturing with a nail and jeweler's hammer.
I am not worried about it. It was used as a stop-gap until I found an original, which wound up being NOS.
If you want to thumb through the last discussion you were part of,  feel free to critique. I sold it on Ebay about three months ago.
Title: Re: 67 GT500 Thermostat housing
Post by: 1967 eight barrel on June 18, 2019, 12:41:46 PM
Here is the link.
http://www.saacforum.com/index.php?topic=5101.msg43632#msg43632
Title: Re: 67 GT500 Thermostat housing
Post by: shelbydoug on June 18, 2019, 04:06:58 PM
Very nice would be a gross understatement. It just plain looks great.

I bought one to try the procedure.