C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

L98 Water Pump, go OEM or aftermarket?

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Old 07-31-2001, 03:52 PM
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scorp508
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What do you guys think? I will be pulling the engine apart very soon from the looks of things. I think 141k miles on the original water pump is pretty good, so lets replace that also.

Should I go OEM, or some sort of aftermarket high/flow? I'm not looking into a $300 electric water pump just quite yet, maybe later on.

Old 07-31-2001, 04:00 PM
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onedef92
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Go OEM at discount price. Best of both worlds until you can afford the electric setup.



Old 07-31-2001, 04:02 PM
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scorp508
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Looks like the OEM one is in the $120 range.
Old 07-31-2001, 04:06 PM
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Dave's_88
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What is the benefit of installing an electric?

Old 07-31-2001, 04:16 PM
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scorp508
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Originally Posted by Dave's_88
What is the benefit of installing an electric?

[/color]
Uses up no HP from the engine to rotate.
Old 07-31-2001, 04:30 PM
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Vic'89
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I replaced my water pump at 70K when I recently did my intake manifold gaskets. I used the Edelbrock hiflow water pump, big waste of money.

I figured that at 70K, my stock pump might go anytime and while I had everything apart, it would be a good idea. I have noticed no drop in water temps at all. My suggestion is to buy a stock replacement.

Vic

Old 07-31-2001, 05:03 PM
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smallblock
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Don't get an Edelbrock.. I spent an hour grinding down and shaping one of the nipples so the heater hose would fit on This was on Terror's car... OEM should be just fine.

Old 07-31-2001, 05:04 PM
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ZylaRace
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Hate to burst your bubble, but if you have an alternator, an electric WP doesn't save you any HP.

Physic's is physic's.
Old 07-31-2001, 05:29 PM
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ROADAPPLE
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Do you want to go another 141K with out any trouble? Go OEM.

DWS
Old 07-31-2001, 05:35 PM
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GRX
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I just bought the aftermarket one for about 85 bucks. Delco was about a 100 bucks more.
The difference was'nt worth getting the Delco. I hope I made the right choice.
Old 07-31-2001, 05:36 PM
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Scorp, I went with a Carter by Federal Mogel listing at $93 (cost $80 and was available immediately). It bolted right up and pulleys aligned perfectly.

ZylaRace, actually the electric might cost more HP for a given flow rate due to losses in the DC motor. However, since the electric can be turned off, say during the 1/4 mi blast, it has a useful purpose.

Old 07-31-2001, 06:00 PM
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Jim85IROC
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I went with the Summit high flow job on my IROC. People always said that you run into overheating problems when putting a 350 into the 85s, but mine runs as cool as a cucumber with the stock radiator.

Old 07-31-2001, 06:30 PM
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LPDesRoche
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Scorp,
I bought one from AutoZone or Advance auto for my 350 and switched it over to my 383 when I installed it. It cost only $35-$40 and lasted well over 50,000 until the guy totalled the vette after I sold it to him. Perfect fit no problems what so ever.

For what its worth...

Old 07-31-2001, 07:27 PM
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vettenuts
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Installed a Steward, very happy with the quality and installation (no mods required to install).

Old 07-31-2001, 08:57 PM
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VQT88Vette
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Originally Posted by scorp508
Looks like the OEM one is in the $120 range.[/color]
Where can you get OEM for $120?

I just ordered one from 18carfan for $129.25 plus shipping.

Wonder how much is the Steward pump.
Old 07-31-2001, 10:15 PM
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Originally Posted by Vic'89
I replaced my water pump at 70K when I recently did my intake manifold gaskets. I used the Edelbrock hiflow water pump, big waste of money.

I figured that at 70K, my stock pump might go anytime and while I had everything apart, it would be a good idea. I have noticed no drop in water temps at all. My suggestion is to buy a stock replacement.

Vic

[/color]
Agreed

Old 08-01-2001, 12:26 AM
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Aggravated4life
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Originally Posted by LPDesRoche
Scorp,
I bought one from AutoZone or Advance auto for my 350 and switched it over to my 383 when I installed it. It cost only $35-$40 and lasted well over 50,000 until the guy totalled the vette after I sold it to him. Perfect fit no problems what so ever.

For what its worth...

[/color]
I did the same..I cheaped out and tried the NEW autozone pump a year ago for 45 bucks with a lifetime warranty and its still going fine.
By now my GM unit would have expired under warranty.

Also 6 years ago when i bought my Vette, the waterpump had almost 80 K miles and was starting to whine..so I went to a local auto parts store and ordered a brand new OEM design pump for 80 bucks...it was GM unit in a box with the numbers grinded off.
I was suprised to see that in the box.

Anyways,Last year when I had my engine partially rebuilt again due to bad machine work the first time a few years back, I decided to get a new waterpump since my replacement was around 5 years old and I wanted a new pump to go with my engine.That OEM pump was still good,didnt make noise or leak, and Im saving it for a spare in case of an emergency.

I cant rem the name of the company on the box I got that pump from, but it was a new GM unit in the box, just labeled differently...you can ask your local stores to show you a pump and inspect it before buying.

So OEM should be just fine...or aftermarket.
I dont see any need to spend over a 100 bucks for a trick or stock pump.

I heard some horror stories about autozone pumps but all I have to say is it lasted a year (and still going fine)and will be replaced free if I ever need a new one.
Just rem. autozone and others doesnt make the pumps, they just sell them from a supplier.
But they offer one of the best warranty.

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