Water neck interchange?
Thread Starter
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Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
Yeah, it's in a truck. That's kinda why I was asking on FTE and no a Bird forum.
Ok, so all i need is a 65-67 truck neck and matching thermostat.
That's easy enough. Thanks for the input!
Justin
Ok, so all i need is a 65-67 truck neck and matching thermostat.
That's easy enough. Thanks for the input!
Justin
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Originally Posted by FFR428
Well yes that's right but there was no mention of using a tank... just the housing which lots have done as a replacement. But I was thinking of that!! LOL 
sorry
just plain dumb on my part.
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Postmaster
Joined: Jul 2003
Posts: 2,711
Likes: 2
From: Pittsburgh
It's a warmed over '64 390 going into a 1985 F150 4x4. It's actually going alot more smoothly than i imagined it would. As it sits I have everything ready to roll, i just need to get my buddy's clutchless Fiero out of my garage so i can get to work.
I have the motor perches welded up and everything, it should just be a motor out, motor in operation now.
Justin
I have the motor perches welded up and everything, it should just be a motor out, motor in operation now.
Justin
Elder User
Joined: Feb 2002
Posts: 987
Likes: 2
From: East Bend, Carolina, U.S
I had the same problem before I switched mine over to the smaller housing/neck The guys at the parts store couldn't believe that a ford back then used two different size thermostats.
I have the older 66 intake and thermostat housing. Not only is the thermostat required for this setup larger than other ones is the diameter of the neck is larger as well. It is visibly larger than the another one I have from probably a 67 or 68 thunderbird engine I am disassembling (came with factory chrome valve covers).
My solution was to simply switch over to the smaller housing and still use the larger thermostat. It works perfectly.
I have the older 66 intake and thermostat housing. Not only is the thermostat required for this setup larger than other ones is the diameter of the neck is larger as well. It is visibly larger than the another one I have from probably a 67 or 68 thunderbird engine I am disassembling (came with factory chrome valve covers).
My solution was to simply switch over to the smaller housing and still use the larger thermostat. It works perfectly.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
The neck made for the smaller thermostat will not allow the larger thermostat to seat properly. No way will it work, and when mounted, the neck will leak like a sieve.
While the housings are different internally, they still use the same gasket. Parts houses sold both a cast iron housing** and a steel one. There are several different designs for these housings.
**These were made by "Everhot."
While the housings are different internally, they still use the same gasket. Parts houses sold both a cast iron housing** and a steel one. There are several different designs for these housings.
**These were made by "Everhot."
Last edited by NumberDummy; Feb 26, 2007 at 10:56 AM.
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Post Fiend
Joined: Dec 2003
Posts: 6,658
Likes: 4
From: "Islander"
I just went thru this with a large stat diameter intake (Edelbrock F427) with a newer small stat cast iron housing.
The small stat has a flange (disc) diameter of 2.125", large stat flange of 2.490". FourSeasons discontinued their large stat cast iron housing but still have the small housing in cast iron, made in China. Offset joints with neck over 1/8" out of round, this is junk. Die cast potmetal or aluminum isn't an option as they are crap, rot away and leak.
Without locating a large stat housing thru the parts stores I ended up machining the 30 year old small stat housing to fit a larger stat. This now holds the large 180 degree Stant pt# 13478.
The small stat has a flange (disc) diameter of 2.125", large stat flange of 2.490". FourSeasons discontinued their large stat cast iron housing but still have the small housing in cast iron, made in China. Offset joints with neck over 1/8" out of round, this is junk. Die cast potmetal or aluminum isn't an option as they are crap, rot away and leak.
Without locating a large stat housing thru the parts stores I ended up machining the 30 year old small stat housing to fit a larger stat. This now holds the large 180 degree Stant pt# 13478.
Post Fiend
Joined: Dec 2003
Posts: 6,658
Likes: 4
From: "Islander"
Yea your post is over a week after I made a large stat housing from a 30 year old small one on the lathe. It was of high quality cast iron compared to that Four Seasons made in China junk, too low of quality even for a chebbie.
What is the site address for "Everhot" FE thermostat housings as all I can find is 15 pages of tankless hotwater heaters?
What is the site address for "Everhot" FE thermostat housings as all I can find is 15 pages of tankless hotwater heaters?
Last edited by "Beemer Nut"; Feb 26, 2007 at 06:43 PM.
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Elder User
Joined: Feb 2002
Posts: 987
Likes: 2
From: East Bend, Carolina, U.S
Originally Posted by NumberDummy
The neck made for the smaller thermostat will not allow the larger thermostat to seat properly. No way will it work, and when mounted, the neck will leak like a sieve.
While the housings are different internally, they still use the same gasket. Parts houses sold both a cast iron housing** and a steel one. There are several different designs for these housings.
**These were made by "Everhot."
While the housings are different internally, they still use the same gasket. Parts houses sold both a cast iron housing** and a steel one. There are several different designs for these housings.
**These were made by "Everhot."
Post Fiend
Joined: Dec 2003
Posts: 6,658
Likes: 4
From: "Islander"
hoxiii; that would be a no!
The small stat would fall into a large stat intake.
I see no problem with a large stat and housing
on a small stat intake, just more overlap of
the stat on the intake.
The small stat would fall into a large stat intake.
I see no problem with a large stat and housing
on a small stat intake, just more overlap of
the stat on the intake.
Last edited by "Beemer Nut"; Feb 27, 2007 at 12:26 AM.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Originally Posted by Purely Ford
There is obviously a diffence in some of them because I have one that works perfectly.
Beemer: I just remembered the name of the aftermarket cast iron housing, or I wooda told you last week. The last time I used one was in 1981.
Last edited by NumberDummy; Feb 27, 2007 at 03:26 AM.
Thread Starter
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Postmaster
Joined: Jul 2003
Posts: 2,711
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From: Pittsburgh
i know the small one would fall into the alrge hole intake, but what i'm saying is what if the housing had two steps machined into it. A large diameter to accept the large thermostat on a large stat intake, and then a countersunk smaller ring to accept the smaller stat on a later intake?
One thick gasket would be enough to make up the depth difference and seal the countersunk small thermostat in place.
It's the only way i can come up with that the housing would be interchangeable as mentioned previously.
Justin
One thick gasket would be enough to make up the depth difference and seal the countersunk small thermostat in place.
It's the only way i can come up with that the housing would be interchangeable as mentioned previously.
Justin
Post Fiend
Joined: Dec 2003
Posts: 6,658
Likes: 4
From: "Islander"
hoxiii; to run a stepped counter bore in the housing, one shallow for the large stat and a deeper step to center the small stat in the large housing all you would need is a shim stock washer that's .046" to .048" thick with the OD of a large stat and a ID of 1.810" to clear the small stats step on the flange.
Why not just run a large stat housing and stat as it will fit both size intakes?
I found the small cast iron housing had a stat step of .087" deep when the stat flanges on the large Stant # 13478 180 degree in stainless is .048" thick, same thickness of flange on the brass small stat flange.
After machining the pocket wider for the large stat plus a clean up cut the pocket was .095" deep, then I faced off the housing ending up with a .052" deep pocket. I want a tignt seal allowing for stat to be secured with no coolant passing thru for the quick warm ups. Years ago this involved soldering the vent hole or jiggle valve they installed in the stat flange.
Why not just run a large stat housing and stat as it will fit both size intakes?
I found the small cast iron housing had a stat step of .087" deep when the stat flanges on the large Stant # 13478 180 degree in stainless is .048" thick, same thickness of flange on the brass small stat flange.
After machining the pocket wider for the large stat plus a clean up cut the pocket was .095" deep, then I faced off the housing ending up with a .052" deep pocket. I want a tignt seal allowing for stat to be secured with no coolant passing thru for the quick warm ups. Years ago this involved soldering the vent hole or jiggle valve they installed in the stat flange.