So I've got a couple of cams which could be from a 7 or could be MR's
Looking at the images at the top of this thread I'm none the wiser
Looking at my cams,
My Exhaust (notches in the end of the shaft) has the 2 rings next to the nut the same size.(none of the above match that)
My Inlet has the rings go, 'small', 'large' then nut.(Matches 8MR cam)
Numbers stamped on the ends are..