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

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

$169.00

1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
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1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4" PS Alt. mounts 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
Fan Hub Working Height 7 1/4"
Pulley hole spacing 1 1/2" adjacent - 2 1/8" opposite
Hose Connections: 1st 2nd
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
Make Model Year Block CID Liters
chevrolet bel air 1969 V8 396 6.5L
chevrolet bel air 1969 V8 427 7.0L
chevrolet bel air 1975 V8 454 7.4L
chevrolet bel air 67-66 V8 427 7.0L
chevrolet bel air 72-70 V8 400 6.6L
chevrolet bel air 73-70 V8 454 7.4L
chevrolet biscayne 1969 V8 396 6.5L
chevrolet biscayne 1969 V8 427 7.0L
chevrolet biscayne 1970 V8 454 7.4L
chevrolet biscayne 1972 V8 454 7.4L
chevrolet biscayne 67-66 V8 427 7.0L
chevrolet biscayne 72-70 V8 400 6.6L
chevrolet brookwood 1972 V8 400 6.6L
chevrolet c10 80-75 V8 454 7.4L
chevrolet c10 pickup 74-73 V8 454 7.4L
chevrolet c10 suburban 80-73 V8 454 7.4L
chevrolet c20 86-75 V8 454 7.4L
chevrolet c20 pickup 74-73 V8 454 7.4L
chevrolet c20 suburban 86-73 V8 454 7.4L
chevrolet c30 86-75 V8 454 7.4L
chevrolet c30 pickup 74-73 V8 454 7.4L
chevrolet camaro 1969 V8 427 7.0L
chevrolet camaro 70-69 V8 396 6.5L
chevrolet camaro 72-70 V8 400 6.6L
chevrolet caprice 1969 V8 396 6.5L
chevrolet caprice 1969 V8 427 7.0L
chevrolet caprice 72-70 V8 400 6.6L
chevrolet caprice 76-70 V8 454 7.4L
chevrolet chevelle 70-69 V8 396 6.5L
chevrolet chevelle 72-70 V8 400 6.6L
chevrolet chevelle 73-70 V8 454 7.4L
chevrolet el camino 70-69 V8 396 6.5L
chevrolet el camino 72-70 V8 400 6.6L
chevrolet el camino 75-70 V8 454 7.4L
chevrolet g10 van 74-73 V8 454 7.4L
chevrolet g20 1976 V8 454 7.4L
chevrolet g20 van 74-73 V8 454 7.4L
chevrolet g30 76-75 V8 454 7.4L
chevrolet g30 van 74-73 V8 454 7.4L
chevrolet impala 1969 V8 396 6.5L
chevrolet impala 1969 V8 427 7.0L
chevrolet impala 72-71 V8 400 6.6L
chevrolet impala 76-70 V8 454 7.4L
chevrolet k10 1976 V8 454 7.4L
chevrolet k10 80-79 V8 454 7.4L
chevrolet k10 pickup 1974 V8 454 7.4L
chevrolet k20 1980 V8 454 7.4L
chevrolet k20 78-76 V8 454 7.4L
chevrolet k20 pickup 74-73 V8 454 7.4L
chevrolet k20 suburban 1973 V8 454 7.4L
chevrolet k20 suburban 1985 V8 454 7.4L
chevrolet k30 1977 V8 454 7.4L
chevrolet k30 86-80 V8 454 7.4L
chevrolet k30 pickup 74-73 V8 454 7.4L
chevrolet k5 blazer 78-76 V8 454 7.4L
chevrolet kingswood 1969 V8 396 6.5L
chevrolet kingswood 1969 V8 427 7.0L
chevrolet kingswood 72-70 V8 400 6.6L
chevrolet kingswood 72-70 V8 454 7.4L
chevrolet laguna 75-73 V8 454 7.4L
chevrolet malibu 75-73 V8 454 7.4L
chevrolet monte carlo 72-70 V8 400 6.6L
chevrolet monte carlo 75-70 V8 454 7.4L
chevrolet nova 70-69 V8 396 6.5L
chevrolet p10 van 1973 V8 454 7.4L
chevrolet p20 1976 V8 454 7.4L
chevrolet p20 1979 V8 454 7.4L
chevrolet p20 van 1973 V8 454 7.4L
chevrolet p30 97-75 V8 454 7.4L
chevrolet p30 van 74-73 V8 454 7.4L
chevrolet r20 88-87 V8 454 7.4L
chevrolet r20 suburban 88-87 V8 454 7.4L
chevrolet r2500 1989 V8 454 7.4L
chevrolet r2500 suburban 1989 V8 454 7.4L
chevrolet r30 88-87 V8 454 7.4L
chevrolet r3500 91-89 V8 454 7.4L
chevrolet townsman 1970 V8 454 7.4L
chevrolet townsman 1972 V8 400 6.6L
chevrolet townsman 1972 V8 454 7.4L
chevrolet v20 suburban 88-87 V8 454 7.4L
chevrolet v30 88-87 V8 454 7.4L
chevrolet v3500 91-89 V8 454 7.4L
gmc c15 78-75 V8 454 7.4L
gmc c15 suburban 78-75 V8 454 7.4L
gmc c15/c1500 pickup 74-73 V8 454 7.4L
gmc c15/c1500 suburban 74-73 V8 454 7.4L
gmc c1500 80-79 V8 454 7.4L
gmc c1500 suburban 80-79 V8 454 7.4L
gmc c25 78-75 V8 454 7.4L
gmc c25 suburban 78-75 V8 454 7.4L
gmc c25/c2500 pickup 74-73 V8 454 7.4L
gmc c25/c2500 suburban 1974 V8 454 7.4L
gmc c2500 86-79 V8 454 7.4L
gmc c2500 suburban 86-79 V8 454 7.4L
gmc c35 78-75 V8 454 7.4L
gmc c35/c3500 pickup 74-73 V8 454 7.4L
gmc c3500 86-79 V8 454 7.4L
gmc g25 76-75 V8 454 7.4L
gmc jimmy 1973 V8 454 7.4L

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1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
1671 1966-1991 Chevy GMC 396 400 427 454 502 Long 7-1/4
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