1679 1958-1978 Big Block MOPAR Chrysler Dodge Plymouth Hemi water pumpAnyone with a big block Mopar knows they can run hot so Flowkooler designed a high flow water pump with a CNC machined billet impeller with 16 vanes, integrated shrouding and a reduced casting to impeller vane clearance. It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids. FlowKooler introduced the first hi