[Purdy Swoft]

It will work either way . I prefer babbit . Babbit bearings can be adjusted by removing or adding shims between the connecting rod and rod cap . Insert bearings only have a thin layer of babbit where they meet the journal of the crankshaft and are not shimmed or adjustable . Babbit is softer than steel . If the thin layer of babbit wears off the insert ,. steel on steel will wear out very , very quickly . It has been said that insert bearings can be used with dipper cap oiling . Pressure oiling would be better and last longer but costs more !!!