SN-60 ID help

I have what I think is an SN-60, but it is different then most sn blowers. it only has 3 mount holes compared to 36, has a large 1 1/8" hole on top, only numbers are ML-836, came with a 5 1/4" V belt pulley, orignal color was orange, its polished now. I'M rebuilding it now to use on a 351W in my 66 ford F-100, I was thinking it might be used on a studebaker. any ideas?. thanks Bill

Can you post some pictures? That will help a lot in I.D.ing this blower you have.

I found out that this sn-60 was used on the 63 studebaker R-2 lark, yet on the avanti they used the blower with the standard 36 threaded holes. just one of those unkown mysteries. bill