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FlowKooler pumps patented impeller designs help stop engines from overheating and reduces engine temperature up to 30 degrees by doubling the flow of coolant and building system pressure.

Home / Products / 1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4" water pump

1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4" water pump

$169.00

1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
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1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4" water pump

$169.00

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
Pilot shaft 5/8"
Fan Hub Working Height 5 3/4"
Hose Connections: 1st 2nd
Gender F F
Diameter 3/4" 3/4"
Threaded Yes Yes
Other Special Features:
  • 16 blade CNC Machined aluminum impeller
  • Anodized with military grade surface coating
  • Has double bolt pattern fan hub
  • "Short" big-block Chevy pumps
  • Alternative Part Numbers 5511146, 58133, 58404, 585019, 58639, 511545, 252372, AW981, DWP366, 10455, 455, 190313, P582B, 99101, P582, 50582, P582, 2281673, 2281897, 181202, ELGWP981, WP981, 87674102841, FP1438, 1302981, 44088, 14087581, 3856284, 3876173, 3927564, 3957982, 3990993, 458486, 411084, HYT11084C, W1494, D302981, P924, P926, 44088, 675422, 676422, 4366, PC403, WP582, 51981, FP1438, T5051, US981,
Parts Contained in Box:
Mounting Gaskets, 3/4" x 1 1/2" Threaded Heater Hose Extension , Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
chevrolet bel air 1965 V8 396 6.5L
chevrolet bel air 1968 V8 427 7.0L
chevrolet biscayne 1968 V8 427 7.0L
chevrolet biscayne 67-65 V8 396 6.5L
chevrolet c10/c1500 pickup 69-68 V8 396 6.5L
chevrolet c10/c1500 pickup 72-71 V8 402 6.6L
chevrolet c1500 suburban 69-68 V8 396 6.5L
chevrolet c1500 suburban 72-71 V8 402 6.6L
chevrolet c20/c2500 pickup 69-68 V8 396 6.5L
chevrolet c20/c2500 pickup 72-70 V8 402 6.6L
chevrolet c2500 suburban 69-68 V8 395 6.5L
chevrolet c2500 suburban 72-70 V8 402 6.6L
chevrolet c30 pickup 69-68 V8 396 6.5L
chevrolet c30 pickup 72-70 V8 402 6.6L
chevrolet camaro 68-65 V8 396 6.5L
chevrolet caprice 68-66 V8 396 6.5L
chevrolet caprice 68-66 V8 427 7.0L
chevrolet chevelle 68-65 V8 396 6.5L
chevrolet chevy ii 1968 V8 396 6.5L
chevrolet corvette 1965 V8 396 6.5L
chevrolet corvette 1970 V8 454 7.4L
chevrolet corvette 69-66 V8 427 7.0L
chevrolet el camino 68-66 V8 396 6.5L
chevrolet impala 68-65 V8 396 6.5L
chevrolet impala 68-66 V8 427 7.0L
chevrolet k10/1500 pickup 69-68 V8 396 6.5L
chevrolet k10/k1500 suburban 1972 V8 400 6.6L
chevrolet k10/k1500 suburban 69-68 V8 396 6.5L
chevrolet k20/k2500 pickup 69-68 V8 396 6.5L
chevrolet k20/k2500 suburban 1969 V8 396 6.5L
chevrolet k30/k3500 pickup 1969 V8 396 6.5L
chevrolet malibu 67-66 V8 396 6.5L
chevrolet p30 van 1972 V8 400 6.6L
gmc c15/c1500 pickup 69-68 V8 396 6.5L
gmc c15/c1500 pickup 72-70 V8 402 6.6L
gmc c15/c1500 suburban 69-68 V8 396 6.5L
gmc c15/c1500 suburban 72-70 V8 402 6.6L
gmc c25/c2500 pickup 69-68 V8 396 6.5L
gmc c25/c2500 pickup 72-70 V8 402 6.6L
gmc c25/c2500 suburban 69-68 V8 396 6.5L
gmc c35/c3500 pickup 69-68 V8 396 6.5L
gmc c35/c3500 pickup 72-70 V8 402 6.6L
gmc k15/k1500 suburban 72-68 V8 400 6.6L
gmc k25/k2500 pickup 69-68 V8 396 6.5L
gmc k25/k2500 suburban 69-68 V8 396 6.5L
gmc k35/k3500 pickup 71-68 V8 396 6.5L
gmc p35/p3500 van 1972 V8 400 6.6L
pontiac acadian 71-70 V8 454 7.4L

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1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4
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