Just poured the bearing on the sparta and while it was cooling some I began to wonder, which is softer lead (tire weights) or 1925 babbitt (remains from an old long gone engin). The bearing poured nice and will do what it is meant to, I think. Might be repoured with sides, unsure how it fits onto the crank. Now off with her head and test the new 110V welder. Leroy