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1970 E-body a/c water valve #2747042
02/27/20 11:38 AM
02/27/20 11:38 AM
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TONY_DAGOSTINO Offline OP
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I’m looking for old magazine road tests showing underhood photos of a 1970 cuda or 1970 challenger with air conditioning to confirm which type a/c valve was used.

I know the parts books show different #s for the 70 compared to 71 valve

is it the metal valve or the red + black bakolite valve

Does anyone have or know of a magazine road test that would answer that?

I’ve heard too many conflicting stories and nobody i spoke to is 100% confident either

Thanks for the help!

Re: 1970 E-body a/c water valve [Re: TONY_DAGOSTINO] #2747055
02/27/20 12:03 PM
02/27/20 12:03 PM
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It's a dry heat
gtx6970 Offline
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When I did my former 1970 Challenger.
I bought an NOS 1970 Valve in the box. and it was the black and red bakelight valve

Its also what was on the car when i bought it as well. and at the time the car was completely unrestored original paint

Now whether or not the one on the car was factory original, ???? i have no idea

Last edited by gtx6970; 02/27/20 12:04 PM.
Re: 1970 E-body a/c water valve [Re: gtx6970] #2747104
02/27/20 01:41 PM
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TONY_DAGOSTINO Offline OP
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thanks,

nos of those are still around, and i believe that is the 71-74 type, but not 100% sure

thats why im looking for some old school road tests, theres got to be a road test of an 1970 a/c e-body

Re: 1970 E-body a/c water valve [Re: TONY_DAGOSTINO] #2747185
02/27/20 06:14 PM
02/27/20 06:14 PM
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Alabama
David1971 Offline
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The 71 Barracuda (318 with AC) that I now own was purchased by my father in October 1971 with 13,000 miles on the odometer. The SPD was 115. It had the metal control valve. I know that for a fact. I was a teenager at the time. My dad and I worked on the car. I remember when the valve failed. Now, could it have been replaced during the first 13K miles? Possibly, but I doubt it.

In 2014, I purchased another 71 Barracuda (318 with AC). I bought it from the original owner with 116,540 miles on the odometer. The SPD was 625. In his garage I found a big box of junk that included the original carburetor. Also in that box was the red-black control valve that I believed to be the original.

I believe that during the 71 production run, the valve was transitioned from the metal style to the plastic style.

David

Last edited by David1971; 02/28/20 10:59 AM.
Re: 1970 E-body a/c water valve [Re: David1971] #2747313
02/28/20 09:25 AM
02/28/20 09:25 AM
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Warren, MI
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Check with Mike at AMS obsolete. Think he has a bunch of those.


www.DetroitMuscleTechnologies.com Mopar body and heater box restoration gaskets
Re: 1970 E-body a/c water valve [Re: 71TA] #2747475
02/28/20 05:10 PM
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TONY_DAGOSTINO Offline OP
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hi,
thanks, i have at least 4 myself, just was never 100% which was correct for 1970
thanks for the help!

Re: 1970 E-body a/c water valve [Re: TONY_DAGOSTINO] #2749002
03/04/20 04:35 PM
03/04/20 04:35 PM
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340SIX Offline
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My 1971 Challenger had the red one.
My early 1970 car had the metal one.
Had a late 1970 i parted that today would have been easy restoration
That had the red one.
That car was never messed with.


[img]https://i234.photobucket.com/albums/ee87/fast340six/sig%20pics/2840886-340SIX-1.jpg[/img]
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73 Dart Sport 340/ 70 challenger vert. That may still get built, If I live long enough
Re: 1970 E-body a/c water valve [Re: 340SIX] #2749125
03/04/20 11:17 PM
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Little Detroit Offline
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have 70 cuda convert with air has metal valve early nov

Re: 1970 E-body a/c water valve [Re: Little Detroit] #2749659
03/06/20 05:34 PM
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TONY_DAGOSTINO Offline OP
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thanks guys!

Re: 1970 E-body a/c water valve [Re: TONY_DAGOSTINO] #2749931
03/07/20 05:05 PM
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Candler,NC / Myrtle Beach, SC
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Tony.....next trip you take to GYC, walk around and look under some hoods. Surely as many cars are sitting there, more than one will have factory AC, and if you're lucky they might have the original valve. Long ago, I had a 70 Challenger R/T with factory air. If I remember correctly, it had the metal valve. Can't confirm it because I never took any pics. frown

Re: 1970 E-body a/c water valve [Re: JDMopar] #2749969
03/07/20 07:37 PM
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I looked up part #s for 70-74 and came up with the following-

70 - 3441034
71 - 3441884
72 to 7/73 - 3502346
after 7/73 - 3502723

The first 3 #s if I'm not mistaken, are all variations of the red/black bakelite unit, and the last is the metal valve.
From what I've heard the bakelite unit was prone to leaking so it was replaced by the metal one.
So I think that's why we are sometimes seeing the metal valves on the earlier cars.
I took a metal valve off of a 70 318 Challenger back in the early 90s myself.

3502723-
https://www.ebay.com/p/1722984198
https://www.ebay.com/p/1722984198?iid=381892222026

3502346-
https://www.ebay.com/itm/NOS-MoPar-...2?hash=item21688c01b8:g:2VUAAOxyjP1R24ii
http://www.bradsnosmopar.com/cornosebunac.html

Is it possible that the aftermarket started producing metal valves in 1970-71-72?
https://www.hiltopautoparts.com/pro...rol-valve-1970-3-e-body-1972-3-b-c-body/

3441034.jpg3441034 3441884.jpg
Re: 1970 E-body a/c water valve [Re: EV2RTSE] #2750160
03/08/20 01:47 PM
03/08/20 01:47 PM
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I used to have one of the NOS metal valves mentioned here,,, back when I had my challenger and I saw NO WAY it would mount to the inner fender like the red/black phenolic valves does. I got lucky and found one nos valve in the 1970 part number box ( found it on ebay not to long after I bought the car in the mid / late 90s time frame ) and it was the red / black valve. Its what was on the car when I sold it

MY personal opinion ( Its worth what you paid for I know ) is the 70-71 had the bake light valves ,, metal came later.

Re: 1970 E-body a/c water valve [Re: gtx6970] #2750389
03/09/20 09:09 AM
03/09/20 09:09 AM
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m46rat Offline
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Originally Posted by gtx6970
I used to have one of the NOS metal valves mentioned here,,, back when I had my challenger and I saw NO WAY it would mount to the inner fender like the red/black phenolic valves does. I got lucky and found one nos valve in the 1970 part number box ( found it on ebay not to long after I bought the car in the mid / late 90s time frame ) and it was the red / black valve. Its what was on the car when I sold it

MY personal opinion ( Its worth what you paid for I know ) is the 70-71 had the bake light valves ,, metal came later.


I would agree. From what I can figure, the only difference between 1970 and 1971 would not be in the red/black valve vs the metal one, but the different metal bracket to mount that valve to the fender. 1971 production(after all the 1970 ones were used up) had a notch in the passenger side fender with a hole in that notch for mounting the bracket, where the water valve was attached to it. 1970 as you know, did not have that notch. The mounting brackets are very different for 1970 and 1971. I can post a picture of the 1970 version tonight if no one else posts one before then.

Re: 1970 E-body a/c water valve [Re: m46rat] #2750549
03/09/20 05:56 PM
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This is the bracket on my un-restored 71 automatic 318 air Barracuda. The distance between the mounting holes is 1 7/8 inch from center to center.

016.JPG
Last edited by David1971; 03/09/20 05:58 PM.
Re: 1970 E-body a/c water valve [Re: David1971] #2750574
03/09/20 07:21 PM
03/09/20 07:21 PM
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Originally Posted by David1971
This is the bracket on my un-restored 71 automatic 318 air Barracuda. The distance between the mounting holes is 1 7/8 inch from center to center.


The witness marks sure look like a bakelite valve was on there to me. I had a 1971 318 barracuda that had a metal valve, looked original, but can't say for sure.

Re: 1970 E-body a/c water valve [Re: 4406bbl] #2750587
03/09/20 08:12 PM
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Alabama
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Hey 4406bbl, I agree with you 100%. I took that picture this evening. When I looked at the image on my laptop, I was shocked to see that imprint on the bracket. You don't really notice it with the naked eye. But the flash from the camera really highlighted the imprint.

I have always taken pride in having an excellent memory. I remember the valve being metal. When it failed we put another metal one (aftermarket) in its place. I have the red-blake bakelite valve that came with my late June 71 Barracuda. I am going to trace the mounting surface onto some paper and compare the tracing to the imprint on the January bracket. If it matches...well, I won't know what to think!

David

Last edited by David1971; 04/08/20 04:49 PM. Reason: left off model year
Re: 1970 E-body a/c water valve [Re: David1971] #2750749
03/10/20 12:37 PM
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I notice several different opinions , it would be nice to see side by side comparison

Re: 1970 E-body a/c water valve [Re: Little Detroit] #2751506
03/13/20 10:31 AM
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m46rat Offline
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Here is a pic. of an original 1970 water valve bracket.

image.jpg
Re: 1970 E-body a/c water valve [Re: m46rat] #2751508
03/13/20 10:33 AM
03/13/20 10:33 AM
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m46rat Offline
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Another

A8A2266C-43DD-4EE5-A1A1-64F5E0D4921F.jpeg
Re: 1970 E-body a/c water valve [Re: m46rat] #2752520
03/16/20 11:23 AM
03/16/20 11:23 AM
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Another

95EC3E9B-1DFC-410E-8DF0-2A7C5A2F17B5.jpeg
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