waterpump

Hey buick lovers, is there a difference in the water pump for a 62 without a/c vs. With a/c? My car does not have a/c but it seems locally the only option available is a water pump for an a/c car...are they interchangeable?

Hello I have purchased w 1 owner 94 roadmaster with 94,000 miles.. It has no heat so im thinking waterpump. I do know I should change optispark as well. If anyone know s good quality waterpump and optispark i'm trying to take advantage of pepboys black friday sale 35% off entire order...