AC Stock or Aftermarket

[hatzie]

Originally Posted by LT7A

I'm surprised too. Generally people seem to be happy with vintage air and the like. They seem to feel like that system moves a lot more air. I just don't like how it takes away the space in the glove box and also doesn't seem to provide good defrost. I don't mind the clunky old nature of the factory underhood pieces. They might not be beautiful, but they are original. There are worthwhile upgrades from what I understand - like a sanden compressor and there is some component, actually I think that Ford manufactures, that people say is an upgrade. Can't remember what it is, so a detailed search might be worth your while.

The Ford piece is the variable orifice valve.
If you're going to run R134a I would replace the fixed orifice valve with the Ford part.

That only appliex to the CCOT systems starting in 79 80 or 81 (I'm not positive on the exact year). The earlier systems have a Thermal Expansion Valve on the evaporator or accumulator fitting that's pretty hard to miss.