The term "full pressure" lubrication is not only meaningless but it can also be confusing as to which 235 engine is being discussed: the lower pressure 235s (1941-1953) and the higher pressure 235s (1953-1963) all had full-pressure relative to the design of their different types of lubrication systems - at least as described in various Shop Manuals.
If a 235 owner reads an older Shop Manual (pre-1954), that person will see GM referring to the lower pressure 216/235 engines as having "Full pressure lubrication to the main and camshaft bearings . . .". The older Shop Manuals refer to "full pressure" lubrication all the way back to the first stovebolt engine (1937) - prior to that time, the lubrication was that of a true "splash oil" pre-stovebolt engine ("splash oil" is another often misused term, but that is another topic).
So, if a new member has read only a pre-54 Shop Manual to try to figure out what engine he/she has, and the new member posts the engine ID and someone replies, "good news, you have a full pressure 235, that member might think that his/her engine is the engine described in the pre-1954 Shop Manual.
