67 AC compressor date question

[Gary N.]

67 coupe Powergluide, February 67 Car,
this is what is on the back of the compressor, is is correct for my car? Starting from the top:

A-1

6555302

L 10

thanks!

[Al R.]

Re: 67 AC compressor date question

Gary, I'll check mine this morning and get back with you. I, too have a Feb 67 AC w PG (make that my wife does).

[Peter L.]

Re: 67 AC compressor date question

Gary - The compressor back plate on our Sept 66, S/N 1476, build 67 reads

C220

6555302

R 15

I checked some other Chevrolet/Chevelle AC compressors that I have & there are other formats but the # 6555302 appears on the rear flange of the compressors I checked & the '67 NCRS TIM&JG does indicate part # 6555302 is cast into it below the casting date & there is a photo of the rear flange. Unfortunately, I have not checked other '67 Corvette AC compressor rear flanges so I don't know if other configurations exist.

FYI, the label on the compressor of our car reads

5910645

3.00 lb

072762

Pete

[Domenic T.]

Re: 67 AC compressor date question

Peter,
C 22 0 cast under the manifold would be: C=March, 22 = day, O = 1970. The 6555302 was on all that did not have the thermal switch. (I) is also used on the casting date.

Dom

[Al R.]

Re: 67 AC compressor date question

Hi Gary, sorry didn't get back top you yesterday. I worked on my truck till around 8:30 last night and got to go finish it up hopefully in a little while. Anyway, I think you are OK with the L10 date on your compressor but I think there should be a 6 after the 10 for 1966. Domenic might can chime in on that and let us know for sure. Our compressor has a date of L156 which is Dec 15 1966 for my wife's Feb. 67 vette. The sticker on top of the compressor also has a date of 122262 which is Dec 22 1966 2nd shift I believe.

[Domenic T.]

Re: 67 AC compressor date question

Hi AL,
Hope all is blowing cold, The clincher here is that the casting dates are raised letters and my guess is that the only one that is raised is the A-1. The long casting number is recessed and L10 would also be recessed if I am correct. No one has figured out the letters and numbers under the long casting numbers yet. I think those may be a batch number or shift.

Dom

[Gary N.]

Re: 67 AC compressor date question

Thanks for all the responses, the A-1 is raised and the others are stamped, do you think this will score ok by a judge?

[Wayne M.]

Re: 67 AC compressor date question

Peter,
C 22 0 cast under the manifold would be: C=March, 22 = day, O = 1970. The 6555302 was on all that did not have the thermal switch. (I) is also used on the casting date.

Dom

Here's an example of the cast letter "I" (September), and the number "1" in the 15 (day of month) 4 = 1964.. I believe the I or 1 used the same character.

PS: the original picture was shot in portrait format, but it seems that DB software rotates to panorama, and I don't know how to override.