The term "babbitted" was used referring to the connecting rod bearings. Up to about 1953, the Chevy motors used connecting rods with the babbitt directly fused to the steel rod as apposed to the modern insert style. These motors also used oil dippers on the rods without pressure feeds from the crankshaft journal. The main oil pressure was lower than other types of motors and so the later more modern 235s were known as "full pressure motors".
