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new user needs advise 5.3L vortec mods

This is a discussion on new user needs advise 5.3L vortec mods within the GM Trucks forums, part of the Vehicle Specific category; Hello I'm new to this I gotta 05 chevy avalanche 5.3 Ls1 I've done some small mods but looking for ...

  1. #1
    Junior Member
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    2005/Chevy/Avalanche

    new user needs advise 5.3L vortec mods

    Hello I'm new to this I gotta 05 chevy avalanche 5.3 Ls1 I've done some small mods but looking for more horse power does anyone with advice on my next move. I've got an flowmaster catback exhaust, AEM cold air intake, doug holley headers, and BBk 80mm throttle body and TB spacer. so what would I do next I'm trying to leave some rubber on the pavement please help me thanks.

  2. #2
    Junior Member RandyW's Avatar
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    A custom tune to get rid of the torque management!

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    yeah but thats only gonna give you about 20HP... I need to do that and I nned something else?

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    Try 4:10s then a higher stall converter,cam then heads.By then it should leave some rubber

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    Sarge for AAG Emperor hutch1999's Avatar
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    1998 Trans Am m6

    how much money are you talking about, because if money is no option supercharge it.

  6. #6
    Adios and vaya con dios ZAPFOOL!!'s Avatar
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    Victory Red
    2002 Corvette Z06

    Quote Originally Posted by hutch1999 View Post
    how much money are you talking about, because if money is no option supercharge it.
    yes boost is good

  7. #7
    Junior Member shabysurf's Avatar
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    black
    04 silverado

    a cam and/or look into some 1.8 rockers, and definetly get a tune, if you get the rockers make sure the cam works with the rockers (not a high lift cam)

  8. #8
    Junior Member shabysurf's Avatar
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    black
    04 silverado

    how did you like the bbk tb, I was looking at those and the 78mm fast, I was wondering if the 78mm was smoother than the 80mm

  9. #9
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    2002 Silverado Z71

    lol go check out performancetrucks.net is my advise... so much more active than this forum for trucks....

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