SKU: 13833671433

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

Sale price$89.10 Regular price$99.00
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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27

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Description

1777CW 1963-1974 Inline 6 CW Rotation Riser 3 7/8" water pumpIf you are running a v belt with a riser set up (like a zips riser) 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 1777CW. 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

If you are running a v belt with a riser set-up (like a zips riser) 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 1777CW.  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!Parts

General Specifications:
Type of Material of Pump Body Aluminum
Number of Blades on Impeller 8 CNC
Direction of Rotation CW
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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13833671433

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4.6 ★★★★★
Based on 28 reviews
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Verified Purchase
Pam’s Product Picks
Pawtucket, US
★★★★★ 4
Durable bone that you can add a spreadable treat to
Color: Blue
Our German Shepherd was 4 months old when we purchased this. She’s going to be 6 months soon. She has been teething really bad. We wanted some way to sooth her pain. This product was just what we needed. We put it in the freezer with some peanut butter in the center on both sides. Once frozen we give to our puppy. She loves it. When we open the freezer she recognizes the ziplock package that it was delivered in which we store it in our freezer. She jumps around until we give it to her. She loves it and it keeps her occupied for a while. It is very durable. I did not notice any smell when we received it. It does not make any noise. The plastic material is safe for animals. To clean I put in the dishwasher. The only reason I did not give it 5 stars is because sometimes the peanut butter gets stuck in it and may need to go through the dishwasher twice which is not a big deal. Or you can hand wash it. I found the dishwasher was best for us. You do not even have to put anything on it, but our pup likes it. I would recommend to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2025
K
Verified Purchase
Kristi K
Omaha, US
★★★★★ 5
Well-made and great size for the price!
Color: blue black
Very tough product, no odor of plastic, good toy for outside, perfect for medium or large dogs. Noise isn't too bad and the color is cute as well. Can't destroy this toy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
H
Verified Purchase
Haley
Carnegie, US
★★★★★ 5
Durable Great for aggressive chewers
Color: Blue
Will make one whole room smell like fake bacon, but my dogs love it and it’s super strong and durable. I have a lab mixed with rotty and a full lab so it’s a perfect match.
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Reviewed in the United States on June 3, 2026
R
Verified Purchase
RUBEN ARELLANO
Battle Creek, US
★★★★★ 5
Indestructible bully toy
Color: Blue
We have a bully that chews through everything, believe it when I say, he loves this n it is still in one piece. Where I put treats in it or not. He’s also able to play tug of war with is brother with this toy. I will be buying additional ones!
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Reviewed in the United States on May 16, 2026
L
Verified Purchase
Lucie P
Carnegie, US
★★★★★ 4
Durable, Dogs love it
Color: Red
My Frenchie is a crazy chewer and can chew up a nylabone in a day, so I was looking for something that would last longer. So far this is holding up, and is pretty durable. Both my dogs like it a lot, it’s easy for them to grasp, and chewable but still very tough material. I suspect at some point it’ll wear down, but not for a while. The size was just as described / expected. Not too small and not too big
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2025

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