1964 Starter / Alternator Dating

[Jeff B.]

On my 64 372/300HP the starter and alternator are dated after the car production date. Both items are dated for 1966 - obviously wrong, and I want to get the correct parts. In my search for the correct items, I assume there is a window preceeding the production date that is considered correct for judging. What is the window, 6 months?

[Mike E.]

Re: 1964 Starter / Alternator Dating

Technically, yes. Best practice?--2 to 6 weeks.

[Ridge K.]

Re: 1964 Starter / Alternator Dating

On my 64 372/300HP the starter and alternator are dated after the car production date. Both items are dated for 1966 - obviously wrong, and I want to get the correct parts. In my search for the correct items, I assume there is a window preceeding the production date that is considered correct for judging. What is the window, 6 months?

Hello Jeff! I'm sure some of the master judges will jump in as they come onto the TDB, but I'll throw out a time frame I have been given in discussions with multiple, experienced midyear judges:
a 0 to six month prior window for stater, alternator, and water pump.
In my own personal studies of midyear big block, original unrestored cars, I have taken notes of original stater dates averaging 2 to 10 weeks prior to engine build date, on average.
For the very rare instances of original water pumps still being with the car, it was even closer at 2 to 5 weeks prior to engine build date, on average. Once again, I'm talking about big block midyears, in this study.
Most judges tell me they accept the six month window (from 0 to up to six months prior to engine build date).
Hope this helps. Ridge

[Tom H.]

Re: 1964 Starter / Alternator Dating

As the others have said, 6 months is accepted. If I were buying parts, I would try to stay in the 2 to 6 week window as well.