Slant Six Saginaw Keyed and Nutted Pulley
BTW, one of the things on my to-do list is to remove a washer from my pump to raise the pressure, based on Borgeson's spec. I believe mine is running the slant six pressure of 800-900lbs. But I don't think the Saginaw pumps are any different physically for 6s or 8s -- they are just set to different pressures, with (possibly) different pulleys, but they would all bolt up to either bracket.