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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
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For Your Every Summer RSVP, with Code: SUMMER15
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: | ||
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||
| 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
4.9 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Great diapers, just a couple small issues
Size: Size 4, Unit Count: 150
Size 4 have been super reliable for my baby. They fit well, don’t sag, and handle active movement without leaking. The absorbency is great for daytime and short naps. My only minor complaint is that they can be a bit pricey compared to other brands, and occasionally the tabs feel a little stiff. Still, otherwise it’s a dependable diaper that I would definitely recommend
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Reliable Fit for Bigger ToddlersI’m
Size: Size 7, Unit Count: 88
These diapers are great quality and hold up really well for active toddlers. My son has always had thicker legs, and these have suited him really well without being too tight or causing irritation. He just turned two and is already in a size 7 (almost an 8), so sizing up has definitely been helpful for comfort and better coverage for US. The absorbency is consistent, and they stay in place—overall a very dependable choice.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
What a wonderful treat, loved by our very fussy dog!
Our very fussy Havanese absolutely LOVES these sticks! I had to find a new product after the USA-made chicken wrapped rawhide sticks were no longer available. It is very difficult to find a quality product made in the USA & while these are made in Cambodia, they seem to be made under very strict standards. I was also impressed that this co. claims it has never had a recall of their products. I also relied on the many, many excellent reviews of past customers. Our Teddy gets a stick every morning & then will wait by the pantry to get an additional 1 or 2 or more throughout the day! He usually does not eat the rawhide, just chews it up a bit. He is in love with these!! He also has a sensitive stomach & these have never bothered him one bit. His teeth are also quite clean from using these!
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Great dog treats
My two dogs love these treats.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Great value
You get so many in the package. My dog gets one each night after dinner as a “tooth brushing”. He’s a big greyhound and these are thin and smallish, which is great for smaller dogs, but he loves them anyway.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026