There is a 12v starter with a solinoid on it to use with a key or push button switch. This starter has the correct drive for the 139 tooth ringgear. I pulled it out if a car years ago and recently put it in a friends 51 gmc with a 261 works good. Problem is that I dont remember the year of car it came out of and it was a bit of an odd ball. If you are interested I can go to his place and get some numbers offf of it. If you can find it it could save you some time parts swapping.
