Retro fitting an AC setup.

Not an AC expert, but shouldn't I be able to convert the R-12 to 134a. Since I have to make my own AC lines, I can control what fittings I use, VIA R-12 fitting on the end that connects to the unit in the dash and 134a fittings to connect to a new dryer/condensor and compressor. Or is this a huge no-no?

Use a full sized Sanden style compressor, a multi pass R-134 style condenser with a receiver dryer and then install the Vintage Air Gen 5 evaporator(they make smaller units too) and electronic control in the dash where the stock heater controls go.

*Be sure to upgrade your electrical system including adding a higher output at idle, dual field alternator, bypassing the Amp gauge, up-sizing the power feed from the alternator and the battery and use relays to keep any higher amp load from passing through the bulkhead connector, which you should clean and seal with dielectric grease.

They don't make a kit for the early A-bodies, but you can retrofit the in-car part easily. Since you can make you own hoses and select you own fittings, you should have that part down. The underhood portion of the system is easy to bolt on.

They will send you a mock-up kit to verify it will fit under the dash. I put mine in there and it fit perfectly , but it is a '68.

This is how I did my '68. The condensers are different for the R-134, as they make the 134 pass through the condenser multiple times on the way out.

There should be retrofit bracket kits available to install the smaller and much more efficient Sanden style compressor on your motor.

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