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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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For Your Every Summer RSVP, with Code: SUMMER15
Description
1777CCW 1963-1974 Inline 6 CCW Rotation Riser 3 7/8" water pumpIf 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
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: | ||
|
||
| 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:
- 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
4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 4
These socks have saved my heels!
Color: Fuzzy Slate Gray, Size: Regular
I really love these socks and how they help my heels to feel. I tend to get large cracks on my heels, and wearing these while I sleep during the summer has saved me a lot of pain. One thing this has disappointed me a bit has been some unraveling of the threads around the top and bottom edges. Doesn't seem to matter how I trim them, the next morning when I wake up there is another hanging thread. Maybe it was just a glitch in the finishing of the batch of socks that I received. I would give them a second chance...this certainly isn't a deal breaker.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
★★★★★ 5
They work!
Color: Fuzzy Blue, Size: Regular
The ZenToes Moisturizing Fuzzy Sleep Socks have been a wonderful addition to my nightly self-care routine. Infused with Vitamin E, olive oil, and jojoba seed oil, these socks are designed to soften and hydrate dry, cracked heels, offering both comfort and skincare benefits. The regular size in blue fits perfectly and adds a soothing touch to my bedtime.
One of the features I appreciate most is the intense moisturization these socks provide. The infusion of Vitamin E, olive oil, and jojoba seed oil delivers deep hydration to my feet, effectively softening and healing dry, cracked heels. After just a few nights of wearing these socks, I noticed a significant improvement in the texture and smoothness of my skin. My feet feel much softer and more comfortable, which is a relief after long days on my feet.
The fuzzy, cozy design of the socks is another standout feature. They are incredibly soft and comfortable, providing a warm and snug fit that’s perfect for sleep. The plush material feels luxurious against the skin, making it a pleasure to wear them overnight. This added comfort enhances the overall experience, making it easier to stick to a nightly moisturizing routine.
The design is practical and thoughtful. The socks fit snugly without being too tight, ensuring they stay in place throughout the night. The regular size is perfect for my feet, and they accommodate a range of foot sizes comfortably. The blue color adds a touch of style and fun, making the socks both functional and visually appealing.
The socks are easy to care for, which is a significant advantage. They can be hand-washed or machine-washed on a gentle cycle, and they retain their softness and moisturizing properties even after multiple washes. This durability ensures that the socks continue to provide effective hydration and comfort over time, making them a worthwhile investment for foot care.
The moisturizing effect lasts long after I take the socks off in the morning. My feet remain hydrated and smooth throughout the day, reducing the need for additional foot creams or lotions. This lasting effect is a testament to the quality and effectiveness of the ingredients used in the socks.
Overall, the ZenToes Moisturizing Fuzzy Sleep Socks have exceeded my expectations. Their combination of deep moisturization, cozy design, practical fit, and easy care makes them an essential addition to any skincare routine. The socks have significantly improved the condition of my feet, providing effective relief for dry, cracked heels and ensuring lasting softness and hydration. I highly recommend these moisturizing socks to anyone looking for a comfortable and effective solution for foot care. They have become an indispensable part of my nightly routine, ensuring that I wake up with softer, healthier feet every day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 29, 2024
★★★★★ 3
THESE THINGS SHED BAD!!!!!!!!!
Color: Pink Strawberries, Size: Regular
These things shed like you wouldn't believe. They're all over my furniture, my floor, my clothes. I'm finding little pink pieces of sock fluff everywhere and it's annoying. I don't think they did that until after I washed them. So if they don't shed on you right away, just wait, it'll most definitely happen. I returned because I won't where them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Keeping the crusty heels at bay!
Color: Cotton Gray, Size: Regular
I deal with chronic dry heels that crack if left unmanaged. I bought these in hopes that when I do soak and scrub my heels that I can keep the cracking at bay. These have been a godsend. I wear them every night and my heels are nice and soft. I plan on purchasing more.
A couple of things I have noticed, if I wear these during the day, the bottom of my feet do seem to sweat and there is some slipping. I have only washed these are directed (hand washing) and you will want to after a couple washes because it could give a sweaty feet smell. Overall, I highly recommend.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Moisturized heels out of the box
Color: Fuzzy Lilac Purple, Size: Regular
Work without adding anything to your feet, but there are extra nice if you wanted to add a moisturizer to you heel and not get it all over your socks. Worth the money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
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