No, the conversion bearings for the splash-oil engines are totally different than the 54-61 rod bearings. They still use the dippers for lubrication, so there's a hole in the lower bearing to align with the dipper hole in the rod cap. There's also an elliptical slot that connects both bearings to allow the oil picked up by the dipper to find its way to the upper bearing shell. The 54-61 bearings get oil from the main bearings through a drilled passageway in the crankshaft. The 216 crank is solid- - - -no oil passages.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!