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oldave57 · 06-19-2025, 07:52 PM

I believe the AC Compressor mounting shown above is the same as the factory installed AC system in the 57 Models, but also the same as many dealer installed units that were hung under the dash. The factory AC units had the evaporator under the hood in an HVAC enclosure and the interior vents were at the base of the windshield above the dash. This arrangement was not quite as effective as later AC vent arrangements where the vents were below the dash or in the dash and probably not as effective as underdash units.

Modern AC installations (such as Vintage Air or Classic Auto Air) use Sanden style compressors which are a bit more efficient than the old 2 cylinder compressors used in 1957. If you are looking for originality, the compressor shown in the photos would be correct, but probably not as efficient as later designed compressors.

06-19-2025, 07:52 PM	#3
oldave57 Member Join Date: Jun 2014 Location: Burlington, IA Posts: 52	Re: Was this my AC set up? I believe the AC Compressor mounting shown above is the same as the factory installed AC system in the 57 Models, but also the same as many dealer installed units that were hung under the dash. The factory AC units had the evaporator under the hood in an HVAC enclosure and the interior vents were at the base of the windshield above the dash. This arrangement was not quite as effective as later AC vent arrangements where the vents were below the dash or in the dash and probably not as effective as underdash units. Modern AC installations (such as Vintage Air or Classic Auto Air) use Sanden style compressors which are a bit more efficient than the old 2 cylinder compressors used in 1957. If you are looking for originality, the compressor shown in the photos would be correct, but probably not as efficient as later designed compressors.