‘77 questions
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
Race Director
Joined: Nov 2006
Posts: 13,148
Likes: 7,762
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
I'm a long time 77 owner. Yes indeed the car came factory with R12 refrigerant. Early 77's have a VIR air-conditioning system. Late 77's have a more modern system. But both used R12. But that was 47 years ago. Many have been converted by now.
77's came with a GM HEI, electronic distributor. Actually a pretty nice, reliable system.
77's came with a GM HEI, electronic distributor. Actually a pretty nice, reliable system.
Le Mans Master
Joined: Sep 2002
Posts: 5,235
Likes: 898
From: Myrtle Beach SC
What's your VIN, Usually an indicator if your A/C is old style or newer
Late in 1976 production, the Delco Air radial-style Model R-4 compressor, painted semi-gloss black, was introduced. The radial compressor is shorter and wider than the axial style. The R-4 compressor foil label is yellow, silver and black and contains the same information as the A-6 label. Some A-6 compressors have been seen with the R-4 label.
