A 1952 235 will be a low oil pressure "splash oiler" engine, the one with Babbit bearings built into the connecting rods. It's an upsized version of the 216 that was originally used in medium-duty trucks and military vehicles from 1941 to 1953 or so. It's an interesting engine, but old geezers like me who remember how to work on them are getting few and far between. Virtually nothing on the early 235 interchanges with the later model engines with the insert bearings. Speed equipment- - - - -forget about it! Even the camshaft and crankshaft is different than the later engine, and the pistons are made of cast iron, not aluminum.
If you're building a numbers-correct restored show truck, stay with the early engine. For practical purposes and ease of repair, go for the 54-up later design 235.
Jerry
