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Thread: Waterpump

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  1. #1
    Join Date
    Sep 2008
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    Hope Mills, NC
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    Waterpump



    2007 chevy 5.3 waterpump. comes with bolts, thermostat, and thermostat housing. 300 miles on it and clean as a whistle. I need an Ls1 waterpump, hardened 7.4 pushrods and springs good to .660 lift. Will trade for those items or $100 shipping included. does not include pulley. good deal as a new pump is $150 with no bolts or thermostat. Waterpump is MINT. I switched to an ls2 intake so i need a different waterpump. Also fits 4.8 and 6.0 as well.
    2005 GMC RST *sold
    2006 Silverado SS with nawz

  2. #2
    what was the interferance problem with the LS2 intake?

  3. #3
    Join Date
    Sep 2008
    Location
    Hope Mills, NC
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    676
    with either an ls1, ls2, or ls6 intake, you need to switch to an ls1 waterpump. theres a good write up on the front page for an Ls6 intake swap. itll have step by step how to and also what you will need. Brand new waterpump if you wanna have one in storage. Make me an offer....!
    2005 GMC RST *sold
    2006 Silverado SS with nawz

  4. #4
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    3,581
    you run the 07 water pump with the car intakes and it clears

    to use a ls1 water pump you need all car accesories
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I am working on a solution for this, a spacer to move the water pump out to the truck pulley location. I don't have a way to test one here but they will be available for purchase before very long. The model is done and the machinist is about to start cutting on them.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Jun 2008
    Location
    Houston
    Posts
    2,348
    Quote Originally Posted by Quik View Post
    you run the 07 water pump with the car intakes and it clears

    to use a ls1 water pump you need all car accesories
    what makes the 07+ pump clear? i got a ls1 pump and used a power steering pully puller to pull the w/p pully out some to get good belt contact.
    Also want to know about those spacers i want to run a electric pump
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  7. #7
    How much of a spacer is needed for realignment for that condition?

  8. #8
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Quote Originally Posted by dustiebutt View Post
    How much of a spacer is needed for realignment for that condition?

    about 1.25"
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  9. #9
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    They're going to be aluminum and you'll have to buy longer bolts and an additional pair of water pump gaskets to complete the setup. My machinist says we can sell the spacers very soon.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  10. #10
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    3,581
    Quote Originally Posted by 408.Luke View Post
    what makes the 07+ pump clear? i got a ls1 pump and used a power steering pully puller to pull the w/p pully out some to get good belt contact.
    Also want to know about those spacers i want to run a electric pump
    look at 07 pump vs a 06-99 pump.. youll see what im saying
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

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