I am having trouble finding the correct GM part number for the alternator on a 68 Hurst with AC. Thanks in advance and a Happy New Year to all.

 

I don't have my notes in front of me, but an educated guess it's probably this one
https://classicoldsmobile.com/forums...nator-55a.html

 

1100777 ALTERNATOR, "Delcotron asm." Ext. Reg. 55A
1968 400 w/ AC (w/ or w/o PS); 68 350 Eng. w/ HD Gen. w/ or wo/ PS; 68 400 eng. w/ HD Gen.; 68 H/O says ROP seller 'bigblockolds' 9364

 

Costpenn, I have that alternator, used, has number 1100777, 55A,
date code 7H30 12 VNEG on it.

This was removed from a 1966 425 Starfire I had years ago, when it was scrapped due to a blown engine......but I do not believe it was the original alternator! Probably replaced with a used unit at some time before I owned it? It has been dry stored indoors since removal, and appears to be in excellent working condition, and never been apart to my knowledge, for over 35-40 years! The main wires are still attached, but have been cut, and the two field wires are attached with connectors still in place! As I was not saving the car, I removed it the easiest way possible....lol!

Octania, do you know how to read the date code? I believe this is the alternator costpenn is looking for.....??

Thanks for any help you can give!!

Happy New Year!!!

 

7=year
H=month
30=day of the month

late 1967 calendar date alt

 

August 30, 1967.

 

Late to this party, but from everything I've seen 1100777 is the A/C unit (55 amp), 1100767 is the non-A/C unit (37 amp).