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Old 06-29-2009, 08:11 PM
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I will be doing a cam swap on a high mileage LS1 soon and would like to change out the water pump as preventative maintenance. Where did you guys buy your replacement water pumps from? PepBoys has a Bosch brand pump? What do you guys think?
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Old 06-29-2009, 08:52 PM
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Originally Posted by Black 99 Bird
I will be doing a cam swap on a high mileage LS1 soon and would like to change out the water pump as preventative maintenance. Where did you guys buy your replacement water pumps from? PepBoys has a Bosch brand pump? What do you guys think?
There's a thread on here, maybe still on the first page, where someone got an updated water pump that fits all LSx's, but the old 98-02 t-stat won't fit.

Make sure you get the right one. That would be a shitty surprise after you got it all mounted up.


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Old 06-30-2009, 09:31 AM
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How many miles on the pump?
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Old 06-30-2009, 05:29 PM
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LS1 water pumps have been known to last well over 150K. How many miles?
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Old 06-30-2009, 05:45 PM
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I am @ 98K now. I have seen a lot of failures around the 100K mark. Any opinions on a replacement?
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Old 06-30-2009, 06:10 PM
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Originally Posted by NBMZ/28
LS1 water pumps have been known to last well over 150K. How many miles?
Factory pump here. 1998 T/A...about 170,000 miles. 118,000 on my 427ci and at least 50,000 for the first 4 years I owned it when it was stock.


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