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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 / 1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8" water pump

1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8" water pump

$89.00

1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8
1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8
1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8
1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8
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1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8" water pump

$89.00

If you are running a serpentine belt with a riser set-up and find you have heat cycling it might mean trapped air.  The best solution is to build pressure to and the best tool is pump 1777.  We designed an impeller with an increased vane count and a reduced impeller vane clearance to take build that pressure.  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. 

We developed this hi flow pump because trapped air can cause overheating in slow speed situation and stop and go traffic. It has been proven time and time again that reducing the cycle time between the heat source and the heat sink drops engine temperatures.  It has been reported that people who run the heater line to the port between No. 6 and No.8 heads and not the manifold seem to have better luck freeing the air.

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

General Specifications:
Type of Material of Pump Body Aluminum
Number of Blades on Impeller 8 CNC
Direction of Rotation CCW
Fan Hub Height 3 7/8"
Hose Connections: 1st 2nd
Gender M NA
Diameter 7/8" NA
Threaded No NA
Other Special Features:
  • 8 blade CNC Machined Aluminum impeller
  • Impeller protected with military grade surface coating
  • A 6 cylinder pump from 1963-1975 is used with Zips Riser set-up
  • Has large and small fan hub bolt patterns
  • Shaft Diameter is 5/8" and extends 1/4" past the fan hub
  • NOTE: Check rotation before ordering; the majority of the applications are CW.
  • Alternative Part Numbers 10048785, 1035638M91, 1038050M91, 12307844, 29308485960, 2930V8485960, 2930V990029, 327261, 3429981, 357261, 3788476, 3815726, 3871521, 3876168, 3876170, 3899219, 3927798, 3929219, 3929262, 3947042, 6258394, 6258446, 8207, 88926104, 3789531
Parts Contained in Box:
Mounting Gasket, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
buick apollo 74-73 L6 250 4.1L
buick lesabre 1970 L6 250 4.1L
buick skylark 71-68 L6 250 4.1L
buick special 69-68 L6 250 4.1L
checker deluxe 70-69 L6 250 4.1L
checker deluxe 74-65 L6 230 3.8L
checker marathon 68-65 L6 231 3.8L
checker marathon 78-69 L6 250 4.1L
chevrolet bel air 65-63 L6 231 3.8L
chevrolet bel air 73-65 L6 250 4.1L
chevrolet biscayne 65-63 L6 231 3.8L
chevrolet biscayne 72-65 L6 250 4.1L
chevrolet blazer 74-69 L6 250 4.1L
chevrolet brookwood 72-69 L6 250 4.1L
chevrolet c10/c1500 pickup 65-63 L6 194 3.1L
chevrolet c10/c1500 pickup 65-63 L6 230 3.8L
chevrolet c10/c1500 pickup 74-66 L6 250 4.1L
chevrolet c1500 suburban 1966 L6 250 4.1L
chevrolet c1500 suburban 65-63 L6 231 3.8L
chevrolet c1500 suburban 74-68 L6 250 4.1L
chevrolet c20/c2500 pickup 65-63 L6 230 3.8L
chevrolet c20/c2500 pickup 74-66 L6 250 4.1L
chevrolet c2500 suburban 1966 L6 250 4.1L
chevrolet c2500 suburban 65-63 L6 231 3.8L
chevrolet c30 pickup 65-63 L6 230 3.8L
chevrolet c30 pickup 74-66 L6 250 4.1L
chevrolet camaro 69-67 L6 230 3.8L
chevrolet camaro 74-67 L6 250 4.1L
chevrolet caprice 74-66 L6 250 4.1L
chevrolet chevelle 67-63 L6 194 3.1L
chevrolet chevelle 69-68 L6 230 3.8L
chevrolet chevelle 73-68 L6 250 4.1L
chevrolet chevy ii 66-62 L6 194 3.2L
chevrolet chevy ii 68-62 L4 153 2.5L
chevrolet chevy ii 69-64 L6 230 3.8L
chevrolet chevy ii 69-67 L6 250 4.1L
chevrolet el camino 69-68 L6 230 3.8L
chevrolet el camino 69-68 V6 330 3.8L
chevrolet el camino 74-68 L6 250 4.1L
chevrolet el camino 75-69 V6 250 4.1L
chevrolet g10/ g1500 van 1964 L6 194 3.2L
chevrolet g10/ g1500 van 69-66 L6 230 3.8L
chevrolet g10/ g1500 van 74-67 L6 250 4.1L
chevrolet g20/ g2500 van 69-67 L6 230 3.8L
chevrolet g20/ g2500 van 74-67 L6 250 4.1L
chevrolet g30/ g3500 van 1970 L6 250 4.1L
chevrolet g30/ g3500 van 74-71 L6 250 4.1L
chevrolet impala 65-63 L6 230 3.8L
chevrolet impala 73-65 L6 250 4.1L
chevrolet k10/1500 pickup 69-63 L6 230 3.8L
chevrolet k10/1500 pickup 74-66 L6 250 4.1L
chevrolet k10/k1500 suburban 69-63 L6 230 3.8L
chevrolet k10/k1500 suburban 74-68 L6 250 4.1L
chevrolet k20/k2500 pickup 65-63 L6 230 3.8L
chevrolet k20/k2500 pickup 74-66 L6 250 4.1L
chevrolet k20/k2500 suburban 74-68 L6 250 4.1L
chevrolet k30/k3500 pickup 74-68 L6 250 4.1L
chevrolet kingswood 71-69 L6 250 4.1L
chevrolet malibu 65-64 L6 230 3.8L
chevrolet malibu 75-73 L6 250 4.1L
chevrolet med/hd series 50 78-73 L6 250 4.1L
chevrolet nova 66-62 L6 194 3.2L
chevrolet nova 70-62 L4 153 2.5L
chevrolet nova 70-64 L6 230 3.8L
chevrolet nova 74-67 L6 250 4.1L
chevrolet p10 van 65-63 L4 153 2.5L
chevrolet p10 van 68-63 L6 230 3.8L
chevrolet p10 van 74-66 L6 250 4.1L
chevrolet p20 van 1966 L6 250 4.1L
chevrolet p20 van 65-63 L6 230 3.8L
chevrolet p20 van 74-70 L6 250 4.1L
chevrolet p30 van 65-63 L6 230 3.8L
chevrolet p30 van 68-66 L6 250 4.1L
chevrolet p30 van 74-70 L6 250 4.1L
chevrolet suburban 67-63 L6 231 3.8L
chevrolet suburban 67-66 L6 250 4.1L
gmc 1000 series 65-63 L6 231 3.8L
gmc 1500 series 65-63 L6 231 3.8L
gmc 2500 series 65-63 L6 231 3.8L
gmc c15/c1500 pickup 69-67 L6 231 3.8L
gmc c15/c1500 pickup 74-67 L6 250 4.1L
gmc c15/c1500 suburban 74-68 L6 250 4.1L
gmc c25/c2500 pickup 74-67 L6 250 4.1L
gmc c25/c2500 suburban 74-68 L6 250 4.1L
gmc c35/c3500 pickup 74-67 L6 250 4.1L
gmc g15/g1500 van 69-67 L6 231 3.8L
gmc g15/g1500 van 74-67 L6 250 4.1L
gmc g25/g2500 van 69-67 L6 231 3.8L
gmc g25/g2500 van 74-67 L6 250 4.1L
gmc g35/g3500 van 74-67 L6 250 4.1L
gmc jimmy 74-70 L6 250 4.1L
gmc k15/k1500 pickup 69-67 L6 230 3.8L
gmc k15/k1500 pickup 74-66 L6 250 4.1L
gmc k15/k1500 suburban 74-71 L6 250 4.1L
gmc k25/k2500 pickup 74-66 L6 250 4.1L
gmc k25/k2500 suburban 74-71 L6 250 4.1L
gmc p15/p1500 van 65-63 L4 153 2.5L
gmc p15/p1500 van 69-66 L6 194 3.2L
gmc p15/p1500 van 69-67 L6 230 3.8L
gmc p15/p1500 van 74-71 L6 250 4.1L
gmc p25/p2500 van 65-63 L6 230 3.8L
gmc p25/p2500 van 74-71 L6 250 4.1L
gmc p35/p3500 van 65-63 L6 230 3.8L
gmc p35/p3500 van 75-66 L6 250 4.1L
gmc pb1000 65-63 L4 153 2.5L
gmc pb1000 69-67 L6 230 3.8L
gmc pb15 1966 L6 194 3.2L
gmc pb15 1966 L6 230 3.8L
gmc pb25 1966 L6 230 3.8L
gmc pb2500 1963 L6 230 3.8L
gmc sprint 72-71 L6 250 4.1L
gmc suburban 66-63 V8 230 3.8L
oldsmobile cutlass 1971 L6 250 4.1L
oldsmobile f85 1971 L6 250 4.1L
oldsmobile omega 74-73 L6 250 4.1L
pontiac firebird 74-70 L6 250 4.1L
pontiac lemans 74-70 L6 250 4.1L
pontiac ventura 74-71 L6 250 4.1L

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