Water Pump Big Block Chevy Mechanical PRW 1445411

PRW High Performance Aluminum Water Pump - CHEV, Big Block Mark IV, 1969-87 & some 88-91 HD Trucks W/Mark IV Engines, does not fit Corvette or trucks over 1 Ton, Long-Style, 5/8" pulley pilot shaft, 1.75" inlet diameter, Water Pump, block-to-hub 7.3125", polished

Style:  Long

Pilot Size: 5/8"

Shaft OD:  3/4"

Block to Hub Height:  7.3125"

Rotation: Standard

Inlet Size: 1.875"

PRW's high flow aluminum water pumps are engineered to deliver an increased water flow. These super velocity pumps significantly improve cooling for all street, high performance and racing applications. With special cast-iron impeller and tight clearances, PRW High Performance Aluminum Water Pumps provide increased coolant flow, block pressure, and balanced delivery. Each pump features low pressure-injected, aluminum alloy pump bodies that are complemented by a precision cast-iron impeller design. This helps minimize engine hot spots at any speed.

Equalized water flow distribution and pressure balanced water passages minimize internal engine hot-spots making these pumps an excellent alternative for not only racers, but also trucks, towing, and motorhome applications. Cruisers and hot rodders will appreciate the improved cooling at low speeds and the availability of polished aluminum water pump bodies for nearly every application.