a/c compressor part number

[eric.henning]

Anybody (Emery?) have part numbers for replacement a/c compressor? (dash air)
for a 73 455?
Mine slung all the oil out and lost all the freon. I will replace compressor
and dryer and switch to 134a.

Anybody have a write up on adding another evaporator under the front seat?
might be a good time to do it.

Thanks

eric.henning