George, I don't recognize that engine, but the rest of it sure brings back the memories. Loved them old B 61s. They were the first diesel trucks I drove. Used to haul bulk and bag cement with that vintage, 60/64. The older ones had a whole 140 HP. The newer ones, with a turbo, put out 180 HP! They a fixed seat, no AC of course, no PS, no radio, no nothing. They were hot, noisy, rough riding, and went no where in a hurry. But drivers really liked them.
I had a friend that worked for a freight company. He told me that when they started replacing the B 61s, drivers would fight over who got the old Macks. Mike
