1683 1961-1990 Chevy GMC and 1971-1982 Corvette C3 C4 305 327 350 3/4" shaft water pump
SKU: 67670023594

1683 1961-1990 Chevy GMC and 1971-1982 Corvette C3 C4 305 327 350 3/4" shaft water pump

Sale price$134.10 Regular price$149.00
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Description

1683 1961-1990 Chevy GMC and 1971-1982 Corvette C3 C4 305 327 350 3/4" shaft water pumpCorvette running hot? Flowkooler designed a high flow water pump with a CNC machined billet impeller to increased vane count and a reduced casting to impeller vane clearance to take care of the problem. 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 for the

Corvette running hot? Flowkooler designed a high flow water pump with a CNC machined billet impeller to increased vane count and a reduced casting-to-impeller vane clearance to take care of the problem.  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 for the inline 6 and continues to improve impeller design. Why is increased flow so important to cooling a hot Small Block Corvette 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
Fan Hub Working Height 5 13/16"
Shaft Diameter 3/4"
Hose Connections: 1st 2nd
Gender F F
Diameter 3/4" 7/8"
Threaded Yes Yes
Other Special Features:
  • 16 blade CNC Machined Aluminum impeller
  • Protected from corrosion with military grade surface coating
  • Impeller blades at right angles to shaft; bi-directional impeller
  • Upper hose inlet contained in square boss 1 1/8" tall
  • 3/4" shaft
  • Alternative Part Numbers 10048921, 12307829, 12458924, 12458925, 12522037, 14105938, 3998205, 6258551
Parts Contained in Box:
Mounting Gaskets, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
chevrolet caprice 68-61 V8 327 5.4L
chevrolet corvette 1980 V8 305 5.0L
chevrolet corvette 82-71 V8 350 5.7L
chevrolet impala 68-61 V8 327 5.4L
chevrolet med/hd series 40 80-73 V8 350 5.7L
chevrolet med/hd series 50 90-73 V8 350 5.7L
chevrolet med/hd series 60 90-73 V8 350 5.7L
chevrolet med/hd series c50 86-80 V8 350 5.7L
chevrolet med/hd series c60 1983 L6 374 6.1L
chevrolet med/hd series c60 1983 V8 366 6.0L
chevrolet med/hd series c60 90-80 V8 350 5.7L
gmc c5000 86-80 V8 350 5.7L
gmc c5000 89-87 All All All
gmc c6000 90-80 V8 350 5.7L
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: 67670023594

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Anyone who has facial psoriasis will tell you there are not a lot of products that you can put on your face without irritation or flareups. This soap is just what I needed. There are no irritating chemicals or perfumes in this soap. I have read other reviews that the soap does not last very long but there is a way to use it to make it last. First, I wet my face and then I wet my fingertips and rub my finger tips across the dry bar of soap and then lightly rub my face with my fingertips softening the plaques and then lightly wash with a soft cotton washcloth. It is not really moisturizing but not over drying either. I follow up with an organic vegetable-based glycerin oil to moisturize. This is the best product I have found yet.
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Reviewed in the United States on June 2, 2020
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Sabrina Terry
Phoenix, US
★★★★★ 5
Heals skin
It definitely dries out your skin quickly but I do recommend moisture so the skin won’t crack or you get open cuts as your dermatitis is healing. I have dermatitis really bad where my skin drys and hurts when I have a cut, So far it’s working as intended.
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Reviewed in the United States on April 11, 2026
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Candis J.
Carnegie, US
★★★★★ 5
Great Product!
This soap worked very well. I have sensitive skin it didn’t irritate my skin during an allergic reaction or make my skin feel dry.
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Reviewed in the United States on July 16, 2025
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Amazon Customer
Whiting, US
★★★★★ 4
nice
works good
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Reviewed in the United States on June 1, 2026
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UPSTATE NEW YORK
Omaha, US
★★★★★ 5
THIS ITEM WORKED WONDERS FOR ME..
DURING THIS WINTER SKIN PROBLEMS WERE PRESENT SO I TRIED THIS ITEM, AT FIRST I NOTICED THAT IT MADE MY SKIN FEEL REALLY DRY BUT IT DID CALM MY SKIN DOWN TO THE POINT WHERE THE ISSUES, WHICH WERE BECOMING INTENSE, JUST DISAPPEARED AFTER I USED IT 2-3 TIMES EVEN ON MY FACE, SO PERHAPS DRYNESS IS WHAT ENDED MY SKIN ISSUES (PSORIASIS) I HAVE EXPERIENCED IN THE PAST USING OILS AND CREAMS WHICH HAVE MADE MY ISSUES WORSE SOOOOOO THIS ITEM WAS A SUCCESS FOR ME.
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Reviewed in the United States on February 3, 2026

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