[Bill Diehl]

Maybe somebody that worked were the made it can dissect the numbers for you but......with the small block ford stuff there are so many variables when buying used cams.

does it have common cam bearings or stepped?

Is it old nascar stuff with 55m 1-4 and 50mm rear?

if so what firing order is it?

was it ground with 41-1/2 or 45 or 42/46 lifter phasing angle?

here is what I do....measure the bearings, put it in the right block and then you can measure all the other stuff yourself and determine what stick it is