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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
1673 1965-1973 Chevy GMC 396 400 427 454 502 Short 5-3/4" water pumpIs 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
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: | ||
|
||
| 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 |
- Corvette/Chevelle/GM OEM 3906656 Deep Double Groove Pulley may require a shim to prevent rubbing
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
4.4 ★★★★★
Based on 154 reviews
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Product Reviews
★★★★★ 5
Must-Have for Dog Owners (Whow have dogs that like to fetch)
Style: 2.5" Ball
Soon as this launcher arrived I went outside with the dogs to try it out. Long story short: This is a great fetch toy. I am able to launch the ball pretty far with little to no effort, and picking the ball back up is as easy as grabbing it with my own hand.
The toy itself is very sturdy, so much so this is the only fetch-toy I'll ever have to buy. Considering how durable it is, I don't think I'll ever need to buy a replacement. I believe Chuck-It is the most popular option, and because this is the first fetch-toy I purchased, I can't really compare it to anything else. A few outlier reviews said the ball was difficult to launch, and I have to disagree. It has been so easy to use I can't possibly see what the problem is. And no, upper body strength is not a factor as I virtually have none. People can get great distance (Half the length of a football field by my eye) in one simple, easy motion. And if other products can launch the ball farther, so what? How far is far enough? Is your dog going to throw a fit because it went 40 meters instead of 50? No. They will not. For anyone upset this toy doesn't launch far enough, ask yourself this: Is the toy for their dog? Or the human who bought it?
The bottom line is this: It feels like it's built to last, it's inexpensive, and it does what it is supposed to do. So long as a toy is "good enough" I don't see the point in splitting hairs and trying to determine which fetch toy is the absolute best.
Saying it's good enough is a bit misleading though. I can't imagine how a dog toy like this could be any better.
It's a must-have for any dog owner. Unfortunately, only one of my pups likes to fetch...
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Reviewed in the United States on January 6, 2020
★★★★★ 5
Works Like a Charm!
Style: 2.5" Ball
WoW!! This thing is pretty cool! It can pick the ball up off the ground - and with little effort - It can throw the ball 3X Higher and Further than I ever could! It wont hurt my elbow or wrist ( way better than before when I was wearing myself out ) I don’t know how I ever got along without it!! It's a must have if your dog loves playing ball. :-)
Update: I've had this For 7 Months Now- it looks and works Great just like the day I bought it- Thumbs up!
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Reviewed in the United States on September 29, 2024
★★★★★ 5
Better Design - Better Materials - No Sticking
Style: 2.5" Ball
Been using Chuck-It launchers and plastic balls for a very long time and they were always a little sticky on giving up the ball. This makes it tricky to throw grounders with precision and can overshoot the fence in the backyard. A couple of years ago, Chuck-It changed the material to a stiffer plastic that made this problem more pronounced. I even tried custom sanding the cup to get just the right grip.
The Fetch-It launcher (using the Chuck-It plastic balls) uses a three-pronged claw with soft rubbery ends that releases perfect every time. The material costs on this new one are noticeably higher while maintaining a somewhat lower price than the brand name original.
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Reviewed in the United States on January 9, 2026
★★★★★ 3
Meh
Style: 2.5" Ball
It "works" but it isn't very good. The grip is so loose on the ball, it lets go early and doesn't thrown very far. A Chuckit is so much better, I can get 3x the distance with a 25" Chuckit. This thing is kind of a waste.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Holding up well to my dogs.
These have a squeaker inside. My dogs LOVE them. So far have held up very well. My dogs are hard on toys. The price is right. Do recommend
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Reviewed in the United States on February 18, 2026
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