1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts water pump boat We manufacture our impellers from

We manufacture our impellers from 6061 aluminum use a Type II Class II military grade anodized surface coating which further protects against corrosive fluids

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Why is increased flow so important to cooling a Bronco using Mountaineer block

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

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1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts water pump boat We manufacture our impellers fromIs 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