As Paul mentioned, I was pretty sure that I had to get different brackets to mount the pump to my 409 block. I know that the pulley on the pump wouldn't work either. The belt alignment was way off. I remember it well because that pulley was expensive but it gave me the proper belt alignment. At least that's the way I did it, Carmine.I used the pump and pulley that came on the 327. Probably wrong but works great. Not sure about the bracket ?
Bill