If you want to run a 12v starter you will have to change the ring gear on the flywheel as he gear pitch is different.

As has been noted by many, 6v starter will run fine on 12 volts.


BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022