You are right if I understand you to mean babbitted bearings, but the needle
or roller bearings I am thinking of are very close to the ones used in the
crankshaft now. The only difference is a one piece cage/bearing instead of
many rollers and a loose cage. I was looking into maintaining the same
housings and shaft sizes. Width is not an issue spacers can be added, the
major Problem is Honda had 10 different sizes of shaft and bearings. And,
although I have not found a different one yet, I believe there were
different inside diameters on the end bearing housings.
Bill