First, which way does the pump turn on our cars as view from the front. I know later Chevy's usually turn ccw, but, I was thinking ours turn cw like the older v belt drives. Too hot to go try to look at it.
Second, I know a lot of the older cars shared water pumps between Buicks and Chevy's. I figure that I could find a larger selection of high volume pumps if I was looking for a Chevy pump than a Buick pump...hence the crossover question.
Okay, looks like it has to turn CW...so I would guess that a pump for the early 80s or so would swap