You are correct in that all heaters were dealer installed, but that is not a heater that would have been "original" to your 1946.
I had a picture of the one from my '46 but cannot find it right now.
That heater was intended for a F*** flathead V8. Those had a split cooling system with 2 water pumps.
Steve
Last edited by Wheelie; 03/05/2023 11:57 PM. Reason: grammer
