Holes in the firewall ???

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Brooks James

Brooks James

VET, CPT, Huey Medevac Pilot
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70 Dart, when I got it it was a bone stock slant 6. I’m guessing that these are ac holes but my entire heating/ ventilation system including controls
Do not include ac. The holes are cut extremely clean as if done by the factory. Is it possible that the factory cut the holes and they were never used???
Any ideas???

2463688C-A46E-4873-9CFD-A19157901340.jpeg
 
Brooks, Here is a photo of a 68 Valiant that had dealer installed Mopar A/C. Notice the hose route and the holes in the fire wall. Maybe the same happened to your car. I have heard that the hole placement was not specific always.
IMG_2186.jpg
 
Darter6 said:
Brooks, Here is a photo of a 68 Valiant that had dealer installed Mopar A/C. Notice the hose route and the holes in the fire wall. Maybe the same happened to your car. I have heard that the hole placement was not specific always. View attachment 1715755249
Click to expand...
I see your ac hoses going in behind the
Brake booster. Mine are underneath the wiper where I think the factory hoses ran ???
 
Depends what A/C unit the dealer was installing, and the year... mine were under the wiper motor, too- sorry, no pics; I welded them up.
 
Brooks James said:
70 Dart, when I got it it was a bone stock slant 6. I’m guessing that these are ac holes but my entire heating/ ventilation system including controls
Do not include ac. The holes are cut extremely clean as if done by the factory. Is it possible that the factory cut the holes and they were never used???
Any ideas???

View attachment 1715755237
Click to expand...
From your photos we can't see where the holes were. There was talk about dealer installed a/c. Do you have any traces of A/C? THe factory didn't punch holes for dealer installed air. Just for factory air. My 70 Swinger has hoses that go through the firewall below the blower motor. They are crudely made holes sealed with a/c sweat tape.

20150706_142014.jpg
 
Factory AC,

AC hoses are between the fan motor and wiper motor.
The factory AC cars use a different fan motor than heater cars, the AC cars do not have the plate around the motor (or it s a smaller one?)
kc1208-76348_7.jpg



Alan
 
If it has factory AC, it should not have a fresh air vent on the drivers side. If it was a factory AC car, the bottom of the cowl on the drivers side was never cut and flanged to hang a vent.
 
JDMopar said:
If it has factory AC, it should not have a fresh air vent on the drivers side. If it was a factory AC car, the bottom of the cowl on the drivers side was never cut and flanged to hang a vent.
Click to expand...
I have a fresh air vent on the drivers side, but it is a CA car?
 
tjpatte said:
I have a fresh air vent on the drivers side, but it is a CA car?
Click to expand...

It may be dealer installed AC. I had a 71 Challenger that had factory AC, was built in the LA plant, and lived the majority of its life in CA. It did not have a vent on drivers side, and the lower cowl never was cut and flanged. We have a 69 Dart GT conv that is a factory AC car, and has no vent on the drivers side and the lower cowl was never cut. I'm not sure when they started that though? My 65 Barracuda is a factory AC car, and it has a factory fresh air vent on the drivers side.
 
JDMopar said:
It may be dealer installed AC. I had a 71 Challenger that had factory AC, was built in the LA plant, and lived the majority of its life in CA. It did not have a vent on drivers side, and the lower cowl never was cut and flanged. We have a 69 Dart GT conv that is a factory AC car, and has no vent on the drivers side and the lower cowl was never cut. I'm not sure when they started that though? My 65 Barracuda is a factory AC car, and it has a factory fresh air vent on the drivers side.
Click to expand...
Would they have had the dealership ship install AC if it’s on the build sheet vice the factory?
 
tjpatte said:
Would they have had the dealership ship install AC if it’s on the build sheet vice the factory?
Click to expand...
If the tag say AC it is from the factory, it it does not the dealer installed it (they are different systems).


Alan
 
I have the driver’s side vent and the holes where the factory ac lines would go. I’m thinking that this is a MaMopar special where it was what they had on hand that day. No other hint whatsoever that there was any items for ac. Or it could be that someone was going to install aftermarket stuff and changed their mind. The holes are very cleanly cut so I suspect the former.
 
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