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This is a discussion on Newbie within the General Help forums, part of the LSx Technical Help Section category; Hey I'm Raybob. Does a 5.3 vortec from 2003 suburban have the same reluctor wheel as an 98 LS1????...

  1. #1
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    Newbie

    Hey I'm Raybob.
    Does a 5.3 vortec from 2003 suburban have the same reluctor wheel as an 98 LS1????

  2. #2
    expensive tires az gt eater's Avatar
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    Hey ray bob, welcome to ls1. You are prob gonna want to post in the help section, but i think a moderator will step in and put your thread in the right place. Anyways, sorry i cant help you.
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    She Moderator KahanaReef's Avatar
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    Arctic White
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    Yeah, I'll move this to the help section

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    Thanks Dudes,,,

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    Veteran Hi-Po's Avatar
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    99-06 5.3 crank should be the same reluctor wheel/same crank as the LS1.

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    Quote Originally Posted by Hi-Po View Post
    99-06 5.3 crank should be the same reluctor wheel/same crank as the LS1.
    So I could just put a 5.3 in my 98 Z28?
    Obviously after changing the Accessories, Oil Pan and intake????

  7. #7
    Veteran Hi-Po's Avatar
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    Quote Originally Posted by raybob9289 View Post
    So I could just put a 5.3 in my 98 Z28?
    Obviously after changing the Accessories, Oil Pan and intake????
    Yep. Both are 3.622, and I'm almost postive 99-06 truck 5.3's were 24x reluctor wheel. I suppose it wouldnt hurt to call around to some repected engine builders/shops and ask, but I pretty sure the reluctors are the same.

  8. #8
    Member JRENIGAR's Avatar
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    ^^^ what would this do for hp, up or down? Im guessing down because of displacement diff.

  9. #9
    Veteran Hi-Po's Avatar
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    Quote Originally Posted by JRENIGAR View Post
    ^^^ what would this do for hp, up or down? Im guessing down because of displacement diff.
    With the downsize in CI, the power output will definitely be lower.

  10. #10
    Member JRENIGAR's Avatar
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    hows the cam profile between the two? I heard the 5.3 heads flowed like the ls6's but had more comp. BTW Im not disagreeing just curious.

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    Fella's,
    I race my 98 Z28 in NASA American Iron. We are regulated to 9.5:1 HP to weight Ratio @ the wheels. 9.0:1 TQ to weight.
    My Camaro is 3019 with me (175ish) and 10gal of fuel.
    We restricted my LS1 at the tuner down to 334HP so I am carrying 140# of ballast. I was thinking of going to the Aluminum 5.3 so I could get rid of the ballast.
    Thanks for all your Help.

  12. #12
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
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    Cool car!!
    I would think the aluminum 5.3 and the aluminum LS1 weigh about the same.

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