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New water pump for cam swap

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Old Feb 2, 2011 | 10:39 PM
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Default New water pump for cam swap

i am doing a heads and cam swap, i am replacing the following things:

PRC 5.3 heads stage 2.5 w/EHT .675 springs
LSR cam 227/235 .614/.624 113 LSA
TSP ported LS6 oil pump
LS2 timing chain
LS7 lifters
LS2 lifter trays
MLS .040 head gaskets
all necessary gaskets and bolts will be replaced

i am wondering if i should be changing my water pump as well during all these changes? i have 130,000+ miles on my LS1, have great compression and regular maintenance...just need to know if i should change the water pump with a stock replacement.

Last edited by trans_am7935; Feb 2, 2011 at 11:09 PM.
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Old Feb 2, 2011 | 11:07 PM
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If it was me, I would defiantly change it. Also did you have your heads milled?
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Old Feb 2, 2011 | 11:09 PM
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no did not mill them, oh and they are 5.3's not LS6...i will fix it. i plan on making just under 11:1 compression with the 62cc heads and .040 head gaskets
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Old Feb 2, 2011 | 11:10 PM
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It more of a preventive measure kinda of thing. Hell I'm replacing mine in the next few days after my head and cam swap, and im only at 55k.
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Old Feb 2, 2011 | 11:15 PM
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yea i thought the same thing...i am over 130k and motor still runs strong. is the stock ls1 a good replacement or is there another one i should go with?
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Old Feb 2, 2011 | 11:18 PM
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Originally Posted by trans_am7935
yea i thought the same thing...i am over 130k and motor still runs strong. is the stock ls1 a good replacement or is there another one i should go with?
lol, whats your budget?
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Old Feb 2, 2011 | 11:21 PM
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So you want to be a G? Meziere Electric Water Pump with a 630.00 price tag lol. Stock replacement is fine I think.
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Old Feb 2, 2011 | 11:24 PM
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yea i dont need an electric one, a belt driven one is fine, my budget is what will be best for my car, so saving money is good, but i dont want some off brand crap.
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Old Feb 2, 2011 | 11:25 PM
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Rockauto.com. Oe replacements can be found there.
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Old Feb 2, 2011 | 11:31 PM
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the bosch brand new is about 100$ at pimp boys.......cheaper than rock auto
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Old Feb 2, 2011 | 11:42 PM
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Originally Posted by sjsingle1
the bosch brand new is about 100$ at pimp boys.......cheaper than rock auto
ill check that out tomorrow, that is for new right?
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Old Feb 3, 2011 | 12:09 AM
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Yea it will be new. I dont think it would be a reman.
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Old Feb 3, 2011 | 07:28 AM
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My OEM water pump is on its 3rd cam and 3rd motor and still pumping strong.
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Old Feb 3, 2011 | 08:41 AM
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i will just look at it and check it out when i remove it, is there any signs i can look for when i remove it to see if it is failing or should be replaced, vise from it leaking and all, what other sign will be present if it needs to be replaced? cause it runs fine now
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