john73bb

Is there a difference? I have heard that the oil galley area near the base of the distributor is a little different. I think the BB one only has the groove machined for half the way around the shaft, while the SB one is machined all the way around. I have also heard that it really doesn't matter and either one will oil both sides of the engine just fine. Does anyone know for sure?

Thanks,

John.

boredsoIstrokedit

They ARE interchangable provided the deck height is the same.

john73bb

Thanks. That is what I thought. So, why DID they make some distributors with the oil passage machined all the way around the distributor shaft and others that weren't? Any ideas?

redvetracr

John,
You are correct (sort of) `65-66-67 BB distributors did not have that groove machined all the way around, something with the rear cam bearing that was changed (corrected) for`68. The mid-year distributors are some of the most valuable. .....redvetracr

john73bb

That explains it.

Thanks!