[DavidG]

Judging from your photos, given the engine number on the bell housing (which indicates that the engine was manufactured in April, 1934), the post-'33 generator, and starter motor, it is highly likely that the engine has a counterbalanced crankshaft as that went into production late in the '32 model year with all fours having the new crankshaft after engine number B5175103. You can satisfy yourself that is so equipped by pulling out the oil filler tube and with the use of a good flashlight you can see if it has the counterbalanced crankshaft (without removing the crankshaft).

The only minor inconsistencies are that the intake manifold is the earliest '32 version and the front timing gear cover is the '32 version, but the exhaust manifold is the '33-'34 version. The front of the engine is supported by what appears to be a modified '32 front cross member, which is consistent with the '32 timing gear cover.

The main bearings are oiled under pressure, but not the rod bearings.