Flowkooler LS Hi Flow Mechanical Water Pump, Truck Style, 1999-2006 GM/LS, 4.8, 5.3, 6.0L,

Water pump 1669 - Chevy, Pontiac
(1999-2006) LS engines FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot LS1 or hot LS 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. [Read more...] General Specifications: Type of Material of Pump Body Aluminum Number of Blades on Impeller 16 CNC Aluminum Direction of Rotation CCW Fan Hub Working Height Shaft Diameter 1-1/8" Inlet Outside Diameter 15/16" Hose Connections 1st 2nd Gender M M Diameter 3/4" 3/4" Threaded Yes Yes Other Special Features: 16 blade CNC Machined Aluminum impeller system bi-derectional impeller Type II Military grade surface coated impeller Fits 5.7L Gen III/IV LS-based engines Parts Contained in Box: Mounting Gaskets (2) Installation Sheet FlowKooler Decal