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I need suggestions/opinions

Discussion in 'Performance & Fuel' started by suicide_star, Jun 13, 2009.

  1. suicide_star

    suicide_star New Member

    so, i'm working on fixing up my daily driver...just for fun, it's a swb/reg cab silverado with a 4.8 and 3.23 gears. currently, it has true dual flowmaster 40 series 2ch mufflers, a hypertech power programmer III,and i've got a volant intake in the mail. i decided on the next few mods being headers, an underdrive pulley (SLP), and 3.73 gears. my first question is what do you think my truck would run a 1/4 with these mods? is there anything else i'm missing short of a cam to get cheap horsepower? and how badly do header bolts back out on the 4.8's?
  2. retired

    retired New Member

    Do not put under drive pullys on, wasting your money. Headers will free up some horse power.
  3. heavy chevy

    heavy chevy New Member ROTM Winner

    NOS cheep power. YOU might break into the 13s and that is with nos add a supercharger and a turbo and you can get into the 12s
  4. suicide_star

    suicide_star New Member

    can you guys point me toward a supercharger? also, will that void my warranty?
  5. TRPLXL2

    TRPLXL2 New Member Platinum Contributor 1000 Posts

    Magnacharger won't void your warranty, IF you get it installed through an authorized installer or the dealer. I know this because I researched it when I bought my old truck, and they also offer an extended powertrain warranty through GM for the Magnacharger. It is a 3 year/36,000 mile warranty and it costs an arm and a leg, pretty much the price of a new transmission when you blow the old one. :rules:
  6. 2ToNe04

    2ToNe04 New Member 1000 Posts

    dont spray your engine.

    its your daily driver anyways its not a nascar.

    if you want power save your money for a 6.0 motor swap
  7. suicide_star

    suicide_star New Member

    my blazer is my hot rod, i just want my silverado to break at least into the 14's...is all
  8. 2ToNe04

    2ToNe04 New Member 1000 Posts

    youll want:

    cams
    longtube headers
    custom tune
    regear

    a magnacharger will help out alot.
  9. suicide_star

    suicide_star New Member

    can you guys point me in the direction of some good stainless long tube headers? that's my next mod, then 3.73 rear.
  10. zubbiez

    zubbiez New Member

    [​IMG]I'd suggest a whipple supercharger its what I have on my truck heres there web site www.whipplesuperchargers.com they cover all kinds of FAQ there that can point you in the right direction which ever way you decide to go with supercharger.
    Last edited: Jun 15, 2009

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