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Description
1681CI 1963-1977 Small Block Ford cast iron 5-9/16" water pumpSmall block Ford running hot? Flowkooler designed a high flow water pump with a CNC machined billet impeller, an increased vane count 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
Small block Ford running hot? Flowkooler designed a high flow water pump with a CNC machined billet impeller, an increased vane count 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 Ford 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 | 10 CNC Aluminum | |
| Direction of Rotation | CW (N.B. The casting shape and angle of vane prevents reversing flow of this pump) | |
| Fan Hub Working Height | 5 9/16" | |
| Other Special Features: | ||
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| Parts Contained in Box: | ||
| Mounting Gaskets, Installation Sheet, FlowKooler Decal | ||
| Make | Model | Year | Block | CID | Liters |
|---|---|---|---|---|---|
| FORD | BRONCO | 68-66 | V8 | 289 | 4.7L |
| FORD | BRONCO | 77-68 | V8 | 302 | 5.0L |
| FORD | COUNTRY SEDAN | 1969 | V8 | 351 | 5.8L |
| FORD | COUNTRY SEDAN | 67-65 | V8 | 289 | 4.7L |
| FORD | COUNTRY SEDAN | 69-68 | V8 | 302 | 5.0L |
| FORD | COUNTRY SQUIRE | 1969 | V8 | 351 | 5.8L |
| FORD | COUNTRY SQUIRE | 67-65 | V8 | 289 | 4.7L |
| FORD | COUNTRY SQUIRE | 69-68 | V8 | 302 | 5.0L |
| FORD | CUSTOM | 1969 | V8 | 351 | 5.8L |
| FORD | CUSTOM | 67-65 | V8 | 289 | 4.7L |
| FORD | CUSTOM | 69-68 | V8 | 302 | 5.0L |
| FORD | CUSTOM 500 | 1969 | V8 | 351 | 5.8L |
| FORD | CUSTOM 500 | 67-65 | V8 | 289 | 4.7L |
| FORD | CUSTOM 500 | 69-68 | V8 | 302 | 5.0L |
| FORD | E-100 ECONOLINE | 74-69 | V8 | 302 | 5.0L |
| FORD | E-200 ECONOLINE | 1972 | V8 | 302 | 5.0L |
| FORD | E-200 ECONOLINE | 1974 | V8 | 302 | 5.0L |
| FORD | E-200 ECONOLINE | 70-69 | V8 | 302 | 5.0L |
| FORD | E-300 ECONOLINE | 1969 | V8 | 302 | 5.0L |
| FORD | E-300 ECONOLINE | 1972 | V8 | 302 | 5.0L |
| FORD | E-300 ECONOLINE | 1974 | V8 | 302 | 5.0L |
| FORD | F-100 | 1969 | V8 | 302 | 5.0L |
| FORD | F-250 | 1969 | V8 | 302 | 5.0L |
| FORD | F-350 | 1969 | V8 | 302 | 5.0L |
| FORD | FAIRLANE | 1966 | V8 | 289 | 4.7L |
| FORD | FAIRLANE | 1969 | V8 | 351 | 5.8L |
| FORD | FAIRLANE | 69-68 | V8 | 302 | 5.0L |
| FORD | FALCON | 68-67 | V8 | 289 | 4.7L |
| FORD | FALCON SEDAN DELIVERY | 65-64 | V8 | 289 | 4.7L |
| FORD | FORD 300 | 1963 | V8 | 289 | 4.7L |
| FORD | GALAXIE | 67-64 | V8 | 289 | 4.7L |
| FORD | GALAXIE 500 | 1968 | V8 | 302 | 5.0L |
| FORD | GALAXIE 500 | 1969 | V8 | 351 | 5.8L |
| FORD | GALAXIE 500 | 66-65 | V8 | 289 | 4.7L |
| FORD | GT40 | 1968 | V8 | 289 | 4.7L |
| FORD | LTD | 1969 | V8 | 351 | 5.8L |
| FORD | LTD | 67-65 | V8 | 289 | 4.7L |
| FORD | LTD | 69-68 | V8 | 302 | 5.0L |
| FORD | MUSTANG | 1969 | V8 | 351 | 5.8L |
| FORD | MUSTANG | 68-64 | V8 | 289 | 4.7L |
| FORD | MUSTANG | 69-68 | V8 | 302 | 5.0L |
| FORD | RANCH WAGON | 1969 | V8 | 302 | 5.0L |
| FORD | RANCH WAGON | 1969 | V8 | 351 | 5.8L |
| FORD | RANCH WAGON | 66-65 | V8 | 289 | 4.7L |
| FORD | RANCHERO | 1969 | V8 | 351 | 5.8L |
| FORD | RANCHERO | 67-65 | V8 | 289 | 4.7L |
| FORD | RANCHERO | 69-68 | V8 | 302 | 5.0L |
| FORD | TORINO | 1969 | V8 | 351 | 5.8L |
| FORD | TORINO | 69-68 | V8 | 302 | 5.0L |
| MERCURY | CALIENTE | 67-66 | V8 | 289 | 4.7L |
| MERCURY | COMET | 1969 | V8 | 351 | 5.8L |
| MERCURY | COMET | 68-65 | V8 | 289 | 4.7L |
| MERCURY | COMET | 69-68 | V8 | 302 | 5.0L |
| MERCURY | COMMUTER | 1967 | V8 | 289 | 4.7L |
| MERCURY | COUGAR | 1969 | V8 | 351 | 5.8L |
| MERCURY | COUGAR | 68-67 | V8 | 289 | 4.7L |
| MERCURY | COUGAR | 69-68 | V8 | 302 | 5.0L |
| MERCURY | CYCLONE | 1969 | V8 | 351 | 5.8L |
| MERCURY | CYCLONE | 67-66 | V8 | 289 | 4.7L |
| MERCURY | CYCLONE | 69-68 | V8 | 302 | 5.0L |
| MERCURY | MONTEGO | 1968 | V8 | 289 | 4.7L |
| MERCURY | MONTEGO | 1969 | V8 | 351 | 5.8L |
| MERCURY | MONTEGO | 69-68 | V8 | 302 | 5.0L |
| MERCURY | VILLAGER | 67-66 | V8 | 289 | 4.7L |
| MERCURY | VOYAGER | 67-66 | V8 | 289 | 4.7L |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Perfect gift
Color: 2856 Silver Black Face/Silver Band
Got it for a birthday gift and he loves it. The style was perfect. Great choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Feels cheap, but so far it's held up
Color: 2926 Silver Green
Looks as advertised, works well, and pretty water resistant thus far. Surprisingly water resistant. Unfortunately the band the watch comes with immediately felt a little cheap and flimsy to me. About a week after my purchase the band did inevitably break. The watch itself is still fantastic and everything works proper, like it should. Funny thing, I had left a review shortly after my purchase, talking about my dissatisfaction with how cheap the band felt. I have purchased many Olevs watches in the past and have had zero issues with any of them. I guess the company that makes or sells these watches read my review and asked about my dissatisfaction. I informed them of what happened, and they offered me a full refund. Originally I posted my review at three stars, just for that watch. All the other Olevs watches I have purchased are great. The customer service is so fantastic, this has never happened to me before so I am elated. They earned the five-star rating, and I would highly recommend checking out their collection of watches if you are a collector like me. I am overly confident if you do purchase one of these watches, and have any issue whatsoever with it, if you contact the customer service department they will be incredibly helpful as they have with me, and based off of my recent experience, I am sure they will do whatever it takes to make things right with you. Well done, very surprising customer service department. Very refreshing these days. Based on customer satisfaction alone they get five stars from me!
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Reviewed in the United States on August 26, 2025
★★★★★ 4
Nice watch, cheap band sizing tool.
Color: 2856 All Black Face/Black Band
Nice watch, but watch band link removal tool is made of plastic and broke when trying to size the watch band.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Looks Awesome
Color: 2856 Silver Black Face/Silver Band
Bought this for our son for a fun watch and he loves it !
Looks amazing ! It did take a little bit of time to make it fit his wrist , but after that it was great
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Accurate and affordable starter watch!
Color: 2926 Silver Blue
I bought this watch solely out of curiosity. It's not as heavy as I'd like, but the weight reminds me of the Citizen Super Titanium (lovely watch but not a fan). So I gave it to my son. He loves this watch!
He wears it all day at school and everywhere we go. He's done such a great job of maintaining it that I'm looking to get him more expensive ones for milestones. Honestly, this is a great starter watch and it's amazing how accurate it is!
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Reviewed in the United States on May 9, 2026