sewage pump non clog

Big Block Long hi flow water pump

1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts water pump

Is 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 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.

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: 7 1/4"

Pulley hole spacing: 1 1/2" adjacent - 2 1/8" opposite

Hose Connections:

Gender: F, F

Diameter: 3/4", 3/4"

Threaded: Yes, Yes

Other Special Features:

16 blade CNC Machined Aluminum Bi-directional impeller

Military grade Type II protective anodized surface coating

Has two 3/4" threaded heater hose outlets

Has a mounting boss for alternator bracket in the casting @ 11 o'clock position

Has a boss for Power Steering pump mount on driver's side

Fits General Motors products

Alternative Part Numbers 5511111, 5511155, 5511156, 58135, 58141, 58627, 511551, 251167, 251328, 251494, 251612, 252608, AW1002, 71178, 71221, 71276, DWP442, 100627, 10457, 10460, 457, 470, P1000, AP580B, 190316, 190322, B580B, P580B, 99105, P580, 143050, 1462266, 50580, P580, P580BX, W461, W461N, 2202200, 2281671, 2281671V, 18364, ELGWP1002, WP1002, 724956395590, 87674102865, 87674573016, FP1441, P580, P580BX, NP1000, WP199, 1301320, 44027, 10126715, 12308749, 12456327, 12484890, 12521038, 12525122, 12527761, 12529302, 12529308, 14085852, 19168606, 3931065, 3953620, 3969811, 3977607, 3977609, 6263707, 6272159, WP599, WP599A, 411035, HYT11035C, W1450, W1493, W1766, P1000, 16225, 1493, 44027, GWG32A, 635513, 4442, WP145, WP160, 7093110, QAW1002, 70407, 70854, 70861, W407, W854, W861, PC406, 1450, 1493, WP580, 41002, FP1441, TVI1002, T5083, US1002, WH2071

Parts Contained in Box:

Mounting Gaskets, Installation Sheet, FlowKooler Decal