The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-24-2021, 02:48 PM   #1
70Stub
Registered User
 
Join Date: Mar 2010
Location: Waverly, NE
Posts: 21
Upgrading factory A/C question

I have a factory a/c cab but thinking it might be good to upgrade to a vintage air system. Has anyone ever installed the vintage air but then hung the original evaporator box and equipment on the firewall to give it more of an original look? I don't know if this is even possible. Thanks
70Stub is offline   Reply With Quote
Old 03-24-2021, 05:04 PM   #2
Custom 68
Registered User
 
Custom 68's Avatar
 
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,937
Re: Upgrading factory A/C question

I am afraid if it was just the "shell" it might not look right. With the top coming out to the POA valve then to he hose I am afraid if you didn't do it all it would just look fake?
No there are other options as well. Over the winter I swapped out my original evaporator to one out of a 1987 Chevy pickup (R10). This gave me the option to use the orifice and the accumulator and get rid of my dryer. I had previously upgraded my condenser so I left it in place. The weather has not gotten warm enough to do a final pressure check and know how well it is going to work. I look somewhat "stockish" on the AC and hope to have much colder air. My AC didn't work very well. I will know in a month when it does warm up. I am hoping for a great improvement. This was a pretty inexpensive option.
I didn't want to spend the cash on the vintage air upgrade if I can do it with this.
I know this isn't quite what you asked but it is the direction I went and hope it helps with options.
Dave
__________________
Dave
1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap
1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?)
"A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome".
"If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"
Custom 68 is offline   Reply With Quote
Old 03-24-2021, 05:55 PM   #3
Davidf
Registered User
 
Join Date: Nov 2014
Location: Austin
Posts: 749
Re: Upgrading factory A/C question

When I do my LS swap, I too am going to switch from POA/TXV (R12) system to a CCOT (Clutch Cycling Orifice Tube) system as found on 1987 square bodies for instance. Old Air Products (part #50-7228) will make this easy. I will convert to R134a and try the stock condenser with dual fans. If that does not work, then I will upgrade the condenser as well.
Davidf is offline   Reply With Quote
Old 03-24-2021, 07:48 PM   #4
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Thumbs up Re: Upgrading factory A/C question

I have the Classic air group updated parts in my stock AC box. I'm running 134-A with orifice tube and it runs 36/38* on low. I had them delete the drier for the Accumulator & orifice. The AC is the same now but with the newer 6.0 LS motor installed.
The old motor 305 had the unit in it first.
Attached Images
     
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

Last edited by Andy4639; 03-24-2021 at 09:28 PM.
Andy4639 is offline   Reply With Quote
Old 03-24-2021, 07:59 PM   #5
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,593
Re: Upgrading factory A/C question

I also went with the cycling system on my 69 with a 454, only I used the factory A4 compressor and had to fab my own brackets to mount the compressor
Attached Images
   
kwmech is online now   Reply With Quote
Old 03-24-2021, 09:03 PM   #6
Overdriven
Registered User
 
Join Date: Mar 2016
Location: Long Island NY
Posts: 598
Re: Upgrading factory A/C question

Quote:
Originally Posted by 70Stub View Post
I have a factory a/c cab but thinking it might be good to upgrade to a vintage air system. Has anyone ever installed the vintage air but then hung the original evaporator box and equipment on the firewall to give it more of an original look? I don't know if this is even possible. Thanks
The Vintage Air system is all self contained under the dash, the only things that route externally are the lines to the compressor and a condensate drain. There’s no fresh air intake so you could mount the original “box” on the firewall if you wanted. I doubt the A/C lines in the kit would come out the stock holes in the box so you might have to drill for new locations and maybe route the heater hoses out of the other holes or otherwise get creative.

It could be done and would give the illusion of factory A/C or a more factory appearance. You won’t be fooling many people but I doubt that’s your intention. There are some vehicles that don’t look quite right when you get rid of something so characteristic so I can see why you’d want to do this. I personally don’t like recirculated air very much and will be avoiding Vintage Air in favor of updating like those who posted above.
__________________
1967 C10 LWB 250 6cyl 3ott Panaramic cab “Layla”
1967 Camaro 327 ‘glide cruiser “Bailey”
Overdriven is offline   Reply With Quote
Old 03-25-2021, 11:45 AM   #7
StingRay
Senior Member
 
StingRay's Avatar
 
Join Date: Mar 2000
Location: Saskatoon,SK,Canada
Posts: 2,476
Re: Upgrading factory A/C question

I'm not a fan of recirculated only HVAC either. It is the reason I will go with an upgraded stock system when I get my truck together. With no fresh if you ever want to drive in cooler weather you only have defrost with A/C on. No fresh and the cab fogs/frosts up almost instantly without the A/C pumping to dehumidify. That is a power and fuel sucker. There are a few months of the year here where you heat in the morning and run A/C in the afternoon. It's not a winter thing. I drive a lot of highway and no I'm not cranking the windows down at 75 MPH all the time.

Quote:
Originally Posted by Overdriven View Post
The Vintage Air system is all self contained under the dash, the only things that route externally are the lines to the compressor and a condensate drain. There’s no fresh air intake so you could mount the original “box” on the firewall if you wanted. I doubt the A/C lines in the kit would come out the stock holes in the box so you might have to drill for new locations and maybe route the heater hoses out of the other holes or otherwise get creative.

It could be done and would give the illusion of factory A/C or a more factory appearance. You won’t be fooling many people but I doubt that’s your intention. There are some vehicles that don’t look quite right when you get rid of something so characteristic so I can see why you’d want to do this. I personally don’t like recirculated air very much and will be avoiding Vintage Air in favor of updating like those who posted above.
__________________
Saskatoon, Saskatchewan
Canada
StingRay is offline   Reply With Quote
Old 03-25-2021, 12:53 PM   #8
57larry
Registered User
 
Join Date: Nov 2007
Location: Indianapolis
Posts: 1,161
Re: Upgrading factory A/C question

spend the money and go with a complete Vintage Air system, heat & cool
57larry is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:26 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com