Edelbrock Big Block Chevrolet 5/8" Shaft Long Style Standard Rotation Water Pump (EDE-8851)
Fits 1969-87 B/B and some 1988-91 heavy-duty trucks with Mark IV engines. Does not fit Corvettes or trucks over 1-ton. Includes 3/4" ball/roller bearing. Dimension from block surface to hub: 7-5/16". Inlet diameter: 1.875".