In 1946/47, the 5000-6000 series trucks had a standard 235 engine.

The 1954 235 is a little different than the 1946-1948 235s.

What is the serial number on the engine (pressed into the block at the rear of the distributor).

Maybe someone knows if the 1954 starter gear matches up with a 1946-47 flywheel (if that is what you have)?