small block OEM bolt on timing tabs-

Could you measure from the zero line to the center of the adjacent bolt hole to confirm please?
sure, why not. if they haven't sold by the time i get back to the shop tomorrow i'll gladly measure them up.

however, i'm wondering why you'd want this measurement? are you in doubt of what you have on your motor? or are you unsure in the veracity of my claim of what these are?