Thanks helrazr3, I have always been a Mopar guy and over the past 4-5 years have gained a bit of knowledge / info on the flatheads. They are really a pretty good power source and Mopar produced them virtually uchanged up through the early 70's for use in industrial applications, so parts are readily available at NAPA, Autozone, Tractor supply/repair facilities. They were used a lot in fork trucks, airport tugs, irrigation pumps, combines, tractors etc.
Need to make one revision to the info I provided after reading through it again.
On my post above the reference to the Borg Warner R10 OD should say from a mid to late 50's Plymouth or Dodge.