A/C vs. Non A/C fire wall

[straightlinespeed]

Does a non A/C firewall have a different opening than a A/C fire wall. Im curious because I tried to mount a non A/C box into my A/C car and it wasnt even close to fitting. Then found out that there was a trim ring for the fire wall side that was used to support the non A/C box. This was on my 71 Scamp. I would love to see pics of the mounting, or bare fire wall with either option box.

 

[Idaho]

Yes they are different. I don't have pics handy but if nobody posts I'll take some.

 

[4spdragtop]

Hey Ramie, I sent you pics in an email...dunno if it applies as yours is a 71..these pics are of dads 67 ac cuda.

 

[straightlinespeed]

Steve, that is very similar to my car that had A/C. I would be curious to see a non A/C fire wall now.

 

[6pk2goDemon]

Here's a non AC firewall on a 72 Demon

 

[4spdragtop]

In 6pk's pics, you can see the 4 holes for the mount plate/ring for the blower motor. Here is a pic of my 69 non ac cuda.

 

[draginmopars]

Non A/C 72 dart

 

[straightlinespeed]

Perfect! That is exactly what Im looking for. Thank you very much fellas!

 

[gregpurcell]

Also note that the AC box is different from 72 to 73. That's even ANOTHER different firewall configuration

 

[Rocky_JS]

the non a/c firewall retaining ring is just about the same diameter maybe a touch bigger as the a/c hole diameter.

this is a non a/c box in an A/C hole.

 

[toplscuda]

Side by side comparison. My car was non Ac to start and i converted it to factory Ac.

 

[straightlinespeed]

the non a/c firewall retaining ring is just about the same diameter maybe a touch bigger as the a/c hole diameter.

this is a non a/c box in an A/C hole.

Do you have any issues with the box moving around in the hole? Happen to have any pics with that trim ring removed? I didnt feel like messing with it so I sold the box but maybe I should have held onto the box. I dont like the big heavy A/C box and duct work

 

[Rocky_JS]

It does lose some of the integrity that the ring gives to support the heater box. but with the firewall pad it stays snug and does not move around. I can grab it with force and move it. Currently, I am looking for a piece of non a/c firewall to weld in behind it. I just have problems parting cars that can be fixed. lol...

The car is a non a/c car that someone converted through the years. While I have most of the pieces to add a/c to it if wanted it just looks too crowded in the engine compartment and it doesn't get that hot here.

 

[moparshaker]

what i did to turn my a/c car to non ac was cut a round plate 2" bigger OD then the outside non a/c trim ring and installed it on the inside so the gaskets would seal correct and allow you to tighten it down to the cowl.