Trying to find information for an upcoming project.
The PO has put a Chevy small block and 6 speed trans W/PTO into an early '49 2 ton COE!
Here's what I'm trying to identify:
It is a small block couldn't find any obvious block numbers, Chevy red/orange, 2bbl carb, dist in the rear with little door to adjust dwell.
Right side exhaust manifold has the alt/gen mount cast onto it.
Obviously came out of a truck because the trans came with it. 6 speed with PTO, shift pattern - reverse toward driver and back 1-6 in a double H.
The rear engine mounts are on the bellhousing and appear to bolt right into the original frame cross member. Because the engine is shorter than the inline 6, the front mount (single in the center) is mounted on a piece of heavy channel behind the front cross member. This allows the engine to sit a little lower.

I think the 6 speed is the clue since I've found very few references to a Chevy 6 speed.

All the info and pics are in Big Bolts: thread - Maybe CEO project.