How about the Willys-Overland 4 cylinder out of a Henry J?
I have a buddy that got a Sear Allstate (Henry J) for free and is going to make a straight axle gasser with a 429. I can get the 4 cylinder for next to nothing.
EDIT--- Actually, I need to check the dates.
If the engine TYPE/SERIES was designed before 1935, BUT the block was cast in the 50's can I use it? Original design, later casting.
Honestly, I need to see when the original block was designed and cast.