air condtioner

[tucsonjwt]

On the two conversions I had done, it was just the orifice and I think new lines (because mine were leaking at the fittings) and different oil. As I recall, the initial concerns about retrofitting to 134A were somewhat exaggerated.

But, the big problem is that 134A does not cool as well as R12. Some posters here say you need a different condenser for 134A. Here in Tucson there are auto repair shops that still have R12 and will get your old system back to running on R12 without any hassle - they say much cheaper than converting to 134A and operates better.

If you have the $$$ - I would convert the whole operation to Vintage Air electric controlled A/C. I believe I read around $1200-$1500 for parts kit, then add local labor or DIY.

My current 134A conversion on my 83 C20 big block cools OK even in the Tucson summer heat (110 + at times) with I think all stock parts, but my old 76 C20 small block with stock R12 cooled waaay better.