I have a Powermaster 9604 Starter Ford Small Block V8 164 Tooth 3/8 in Depth that runs great hot and cold on a 382CI engine with a measured true static ratio of 10.6/1 and advance reduced to 10° for starting.
I have a push button to operate it without having to turn the ignition on and when the engine has not been running for over 24 hours, I always run it with the starter without spark until the oil pressure light goes out, this takes well over 10 seconds and when I turn the ignition on, even though the starter is hot, it still cranks the engine always as fast and the engine starts instantly.