I have thought about doing this from time to time but never carried the thought experiment all the way through like it seems we have here.

So starting from scratch,

1) I obtain a 6V key switch starter for Chevrolet complete with solenoid and linkage.
2) Then I order a B,O,C 53 or later solenoid and bolt that to the Chev field case. (Olds did use such a starter 53 and after, I had one.)
3) I now have a 6V starter armature and field windings, engaged by a 12V solenoid, all running on 12V.
4) 12V fed from the key switch to the solenoid should engage the starter pinion as though it was all 12V Chevrolet from at 55.2 or later Chev.
5) The starter will run at 12V speed as, in my case, it has for 20 years.

So for the price of a Key-switch starter plus $80 to Rock Auto I get a functioning Key-switch starter on my 12V conversion (originally 6V, still 139teth) flywheel.

Am I missing anything?

Last edited by 1Ton_tommy; 12/07/2024 6:25 PM. Reason: clarification

1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.