A/c evaporator compatibility 73 dart

[RidingBean]

I want to install air conditioning in my 1973 Dart. I am curious if the evaporator box from a Valiant will fit in behind the dash. I cannot find any Dart boxes, so I'm looking to do this. I have no idea how compatible the different makes are, so I am looking for any information. I am trying to avoid the aftermarket kits, but may have to do that.

 

[RedFish]

So long as the year model is the same, the A-body parts will be the same.
If the car didn't come with factory air, aftermarket is the best way to go.