Replacement options for 1988 2.8L A/C compressor? (Page 1/1)
John W. Tilford OCT 10, 10:49 AM
Actually, 3.4L replaced stock 2.8 which may make a difference regarding A/C compressor options.

Did I not read in the Forum there are now available smaller, more efficient, less drag on engine, A/C compressors available? If so, where can I order one and how much of a problem to mount on 3.4 engine?

As always, thank you!

John T

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John W. Tilford

RWDPLZ OCT 10, 11:48 AM
The Four Seasons 58255 is a direct replacement new compressor. Externally it's nearly identical to the original DA6/HR6 compressor.

https://www.4s.com/en/ecatalog?part=58255
Spadesluck OCT 10, 12:03 PM
Also keep in mind you will be changing refrigerant's, R12 to R134a so a lot of o rings will need to be changed out.

AC Conversion on 3.4
Mickey_Moose OCT 13, 02:00 PM
No issues on my 3.4l.

The only issue I had was I had to change the mounting for the bracket as my 3.4l block was missing a mounting point or something (I used the 3.4l HT crate engine from GM - not the Camaro). I would have to crawl back under the car and have a look.

I don't know what compressor is there now (it was replaced when the shop determined it was bad), but it looks very similar to the original unit, but now runs R134A.

[This message has been edited by Mickey_Moose (edited 10-13-2023).]