Some of the blocks are full of hard black crud which nothing will dissolve and has to be manually broken up to get it out. This is best done when the engine is totally disassembled. My guess is that this stuff it radiator stop-leak put in to stop the radiator from leaking on the farm. Radiators were expensive and farmers were poor. "Put in another can Jeb!" We need to get the rest of the corn in."

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission