"New" Stewart Stage 2 Water Pump, TBI 746 ecm

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Old Jun 1, 2009 | 02:46 PM
  #1  
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Car: 97 Z28
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"New" Stewart Stage 2 Water Pump, TBI 746 ecm

Stewart Stage 2 aluminum water pump p/n 23123
This is the description from Stewart's website, 1987-Up Passenger Cars and Light Trucks w/Belt Drive Pumps. CCW for serpentine belt.

The pump is about six years old and has been in storage for that time. It has never been used.

Asking $115 shipped.





Ecm from a '92 RS, has a custom Ed Wright Fastchip prom tuned for a 355 with a 5spd, ZZ4 cam, L98 aluminum heads and 670 TBI unit.

Asking $50 shipped.

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Old Jun 1, 2009 | 08:13 PM
  #2  
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From: Lost Wages, NV
Car: 1988 IROC
Engine: 305 TPI
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Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

Whats the advantage of a stewart over a stock pump?
Do you know what mods they do to their pumps?
They're website is kinda vague as to what they do..

I'm interested in it..

Last edited by LVZ2881; Jun 1, 2009 at 08:16 PM.
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Old Jun 1, 2009 | 09:08 PM
  #3  
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Axle/Gears: 3.73
Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

I really couldn't give you anymore info than what Stewart says on their website.

The only thing I can say is that it only weighs about 5 lbs so it should be around 8-10 lbs lighter than a stock pump so that's kinda nice.
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Old Jun 7, 2009 | 08:19 PM
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Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

$100 shipped for the pump.
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Old Jun 7, 2009 | 08:53 PM
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From: Bellville,Texas
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Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

PM sent.
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Old Jun 7, 2009 | 09:09 PM
  #6  
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From: Lost Wages, NV
Car: 1988 IROC
Engine: 305 TPI
Transmission: 5 speed
Axle/Gears: 3.08 Posi 10 Bolt w/ aluminum drums
Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

pm sent on pump
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Old Jun 8, 2009 | 03:07 PM
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Axle/Gears: 3.55 Wavetrac
Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

Payment sent via Paypal.
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Old Jun 10, 2009 | 01:15 PM
  #8  
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From: TX
Car: 97 Z28
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Axle/Gears: 3.73
Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

Water pump is sold.

Take $40 for the ecm.
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Old Jun 10, 2009 | 02:08 PM
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Re: "New" Stewart Stage 2 Water Pump, TBI 746 ecm

Advantage is a 30% increase in coolant flow, as matched with their thermostat. I have their 3 holed 180* stat to match my stewart pump. You'll love it as I love mine.

From Stewarts Website
Article Found Here

Stewart Stage 2, 3, and 4 water pumps simply will NOT operate with a regular thermostat because these pumps have no internal bypasses.

Last edited by I H8 WWD; Jun 10, 2009 at 02:17 PM.
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