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1899 2001-2007 496 8.1L Chevy GMC water pump

$169.00

1899 2001-2007 496 8.1L Chevy GMC water pump

$169.00

If you're hauling weight and there is limited airflow your big 496/8.1L might just start running hot.  Flowkooler has a solution.  FlowKooler designed a high flow water pump for the 496ci block with a CNC machined billet impeller.  It has an increased vane count and a reduced 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 to improve impeller design. Why is increased flow so important to cooling a hot BBC engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.  This is particularly true when your truck is hauling weight under a load and there is limited airflow.

From 0-3,300 RPM…Nothing Beats a FlowKooler!

General Specifications:
Type of Material of Pump Body Cast Iron
Number of Blades on Impeller 16 CNC Aluminum
Direction of Rotation CW or CCW
Fan Hub Working Height 6"
Fan Hub Working Height 5 5/8"
Shaft Diameter 5/8"
Inlet Outside Diameter 1 3/4"
Hose Connections 1st 2nd
Gender M NA
Diameter 1" NA
Threaded No NA
Other Special Features:
  • CNC Aluminum impeller 16 blade swept vane 
  • Protected with a Type II Class II Military grade surface coating
Parts Contained in Box:
Mounting Gasket, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
chevrolet avalanche 2500 06-02 V8 496 8.1L
chevrolet silverado 2500 07-01 V8 496 8.1L
chevrolet silverado 3500 06-03 V8 496 8.1L
chevrolet suburban 1500/2500 06-01 V8 496 8.1L
gmc sierra 2500 hd 07-01 V8 496 8.1L
gmc sierra 3500 07-01 V8 496 8.1L
gmc yukon xl 2500 06-01 V8 496 8.1L