1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts water pump boat General Specifications: Type of Material

General Specifications: Type of Material of Pump Body Cast Iron Number of Blades on Impeller 10 CNC Aluminum Direction of Rotation CCW Fan Hub  flat Hose Connections: 1st 2nd Gender F F Diameter 3/4"  3/4"  Threaded Yes Yes Other Special Features: CNC Machined Aluminum impeller with 10 vanes

we cannot machine each pump for the myriad of aftermarket plates and/or distorted

8L ford ranch wagon 63-62 L6 170 2

We wanted  t oprevent that so we designed an impeller with an increased vane count and a reduced impeller vane clearance to take care of the problem

1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts water pump boat General Specifications: Type of MaterialIs your big block running hot? 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 flow pumps and continues