SKU: 61196682523

1670 1997-2006 LS1/LS6 Gen III/IV Motor water pump

Sale price$176.40 Regular price$196.00
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Description

1670 1997-2006 LS1/LS6 Gen III/IV Motor water pumpFlowkooler high flow pump 1670 for the LS motor has a CNC machined billet impellers are designed with an increased vane count and a reduced plate to impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. The color is due to Type II Class II military grade anodize surface coating which protects against corrosive fluids. FlowKooler introduced the first hi flow pumps and continues to

Flowkooler high flow pump 1670 for the LS motor has a CNC machined billet impellers are designed with an increased vane count and a reduced plate-to-impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. The color is due to Type II Class II military grade anodize 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 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 Aluminum
Number of Blades on Impeller 16 CNC Aluminum
Direction of Rotation CCW
Shaft Diameter 1-1/8"
Inlet Outside Diameter 15/16"
Hose Connections: 1st 2nd
Gender M M
Diameter 5/8" 3/4"
Threaded No
No
Other Special Features:
  • 16 blade CNC Machined Aluminum impeller
  • Protected with a Type II Military grade surface coating
  • Fits 5.7L Gen III/IV LS-based engines
  • 1997-2004 Chevrolet Corvette, 1998-2002 Chevrolet Camaro Z28 and SS, 1998-2002 Pontiac Firebird Formula and Trans Am
  • Alternative Part Numbers: 251596, 251602, 251615, 251684, 251690, 251707, 251722, 252781, 252846, 511107, 511809, 1258934, 1307290, 1463768, 2662375, 5513136, 12069537, 12369537, 12456112, 12458934, 12533193, 12556887, 12557710, 88894345, 89017456, 89017593, 89018034, 89018053, 89018164, 160097518, 12556440AA, AW5081, ELGWP5081, EWP9189, FP2472, FP2472, FP2474, FP2474, FP2475, FP2475, HYT11107C, NP1704, NP1757, NP5322, NP9272, P9189, P9189, T7049, US5081, US65, WP4013RP, AW5081, 19180591
Parts Contained in Box:
Mounting Gaskets,Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
chevrolet camaro 1998-2002 V8 350 5.7L
chevrolet corvette 1997-2004 V8 350 5.7L
pontiac firebird 1998-2002 V8 350 5.7L
pontiac gto 2004-2006 All 364 6.0L
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: 61196682523

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4.7 ★★★★★
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Kate
Fort Morgan, US
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days. Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
T
Verified Purchase
Tami
Los Angeles, US
★★★★★ 5
Excellent quality!!!
Size: 10, Color: Ocean Breeze
Wow great quality!!! You get what you pay for that’s for sure!! The fabric is heavy-ish-indicative of quality fabric. Fit is spot on. I’m a barely size 10 (5’6” 160 lbs) and these shorts deliver!! The stretch is just perfect enough for comfort. Excited to wear these next summer!! Will watch for more sales so I can grab a couple more pairs. If you’re on the fence, get them!!
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Reviewed in the United States on December 4, 2025
J
Verified Purchase
JC in NC
Dallas, US
★★★★★ 5
Good Quality
Size: 8, Color: Nautical Navy
These are really nice shorts. The fabric is nice quality. They do run a little large.
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Reviewed in the United States on August 27, 2025
P
Verified Purchase
plendy
Port Orchard, US
★★★★★ 5
Love!
Size: 10, Color: Sailors Red
The quality is excellent. They are more of a faded red. I ordered a 10 worried they might be snug but that was a mistake. I should have stuck with my normal size 8. (I purchased an Amazon brand of this style that runs small and the size 10 feels more like an 8.) I love the length-not too short and not too long. They are sturdy cotton. There is not any stretch to the fabric. I’m giving them to a friend. I actually tried to shrink them by washing them in hot water and hot dryer but it didn’t make them fit me any better. Since they were already too big, I can’t really say if they shrunk by doing this. They weren’t huge on me before washing and seemed to fit the same way after. I tried wearing them all day and they seemed to loosen up even further. I was continuously pulling them up. I really feel like the sizing is accurate and you can be pretty confident of ordering your regular size. I’ve already reordered the size 8. I’ll update my review if there any issues with that size.
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Reviewed in the United States on July 19, 2025
E
Verified Purchase
Emily C.
Phoenix, US
★★★★★ 3
Unattractive but well made
Size: 4, Color: Sand
The style was unflattering overall. The shorts fit well in the waist, legs, and seat; they just made me look masculine which is not the look I was going for. For reference I am 5’7, 135#, and purchased a size 4 (which again, fit me well). I’m not sure if the issue was the length, or maybe they just down have a flattering cut - they are very boxy and hide any curves I have. 3 stars because the fit was good and they are well made. But just not attractive.
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Reviewed in the United States on May 4, 2026

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