Suburban A/C fix + Vintage Air?

[phillipm]

Originally Posted by swissarmychainsaw

This is what I bought: https://www.summitracing.com/parts/HLY-20-142
Which comes wit an Sanden SD 7 (no real details on that page though).

I have the parts, but not installed them yet...
I can't even find details on what "cubic feet per rev" this unit puts out.

SD7 is just the family of compressor. On the nameplate it should give the actual model of the compressor and you could look it up on Sanden's website. Something like a SD7H15 would be 154cc/rev and just under 9.5CI/Rev. That would be close. I know late model GM stuff uses 200cc/rev on dual evaporator orifice tube systems. I know the front system on the 73-91 Burb is an orifice tube but not sure if the rear is a TXV or orifice. I would think they would match them?