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Old 04-26-2005, 03:11 AM
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Aluminum Water pumps, what's their advantage?

Hi everybody.

I was comparing Weiand Aluminum Water pumps with Edel's and was wondering why are Edelbrocks almost twice as expensive as Weiands water pumps?

On the other hand, is there any advantage of using Aluminum pump over using cast iron water pumps?

This is regarding Small Block Chevy.

Please advise me on this, I really don't like to pay that much for water pump, if ther's no real difference.

Thanks,
Houman

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Old 04-26-2005, 04:27 AM
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IMO it is not worth the money, You will save some weight by going to alu. and it will transfer heat better (just like alu. heads) but on a street car I really don't think there is any need for it. Maybe if weight was a uge issue then yes but save your money.

Chris
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Old 04-26-2005, 03:21 PM
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Quote:
Originally Posted by strikingthematch
IMO it is not worth the money, You will save some weight by going to alu. and it will transfer heat better (just like alu. heads) but on a street car I really don't think there is any need for it. Maybe if weight was a uge issue then yes but save your money.

Chris
I agree with this, the minuscule weight savings really isn't worth the extra expense.

Buy a quality cast iron pump and save the money for something else, unless you really like the look of aluminum.
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Old 04-26-2005, 04:21 PM
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There is a big weight diff. !! , i have an edelb. alum. "permastar", they are several pounds less than cast water pump.. 30% more flow also..
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Old 04-26-2005, 05:57 PM
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I think with the Edel pump your paying some for name, but then again your getting name brand. Id get a Miloden pump. 71 bucks and 30-40% more cooling than stock. Just my .02. HG
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Old 04-26-2005, 07:18 PM
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$71 not to bad... The thing with cooling system is that most people don't seem to have a problem with cooling running 500Hp engines with cast iron water pump. Yes a working cooling system is a must but there are plenty of cast iron pumps on 500Hp mosters. If your not replacing the rad. then it might be cheaper to buy the water pump. As long as the engine is not over heating the way it is I see no reason to change.

Chris
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Old 04-26-2005, 08:42 PM
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Quote:
Originally Posted by x007
There is a big weight diff. !! , i have an edelb. alum. "permastar", they are several pounds less than cast water pump.. 30% more flow also..

Several pounds? You need to ditch about 100 pounds to knock .10 of you're quarter time. The 5 or so pounds you save with a aluminum pump really isn't doing you any favors. Also every mechanical water pump, iron or aluminum, is advertised as having 30% more flow.

I paid $74 for my Milodon pump, it's a quality piece. I know Coldknock has been running the same iron Milodon pump on his last 3 sbc's and it's still going.
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Old 04-26-2005, 08:52 PM
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Quote:
Originally Posted by Ghetto Jet
Several pounds? You need to ditch about 100 pounds to knock .10 of you're quarter time. The 5 or so pounds you save with a aluminum pump really isn't doing you any favors. Also every mechanical water pump, iron or aluminum, is advertised as having 30% more flow.

I paid $74 for my Milodon pump, it's a quality piece. I know Coldknock has been running the same iron Milodon pump on his last 3 sbc's and it's still going.
i'm sure there are near 10 pounds if not more, the alu. is realy light.. btw the reason why i have changed it is for the shiny look & weight, saving some pound here and here is always helpfull since my car starting to be loaded.. this may not hurt!
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Old 04-26-2005, 08:54 PM
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Quote:
Originally Posted by Ghetto Jet
Several pounds? You need to ditch about 100 pounds to knock .10 of you're quarter time. The 5 or so pounds you save with a aluminum pump really isn't doing you any favors. Also every mechanical water pump, iron or aluminum, is advertised as having 30% more flow.

I paid $74 for my Milodon pump, it's a quality piece. I know Coldknock has been running the same iron Milodon pump on his last 3 sbc's and it's still going.
I agree! 5 pounds way down low is squat and on a street car the steel will be much stronger, if you over tighten the belt in and alloy pump you will toast it PDQ.
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Old 04-26-2005, 09:09 PM
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You can make aluminum shine real good and they don't hurt your back when you're bent over the car lining up the bolt holes. That's about it.

Larry
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