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  1. #1

    Default I need suggestions/opinions

    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. #2

    Default

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

  3. #3

    Default

    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
    08 silverado
    4.8
    K&N cai
    single in dual out cherry bomb pro
    leveling kit
    custom painted bow ties
    Bed liner
    Tinted windows
    20inch Cruser Alloy Switchblades
    Goodyear Eagle GT2 285/50/20
    1 truly heavy foot + Wait4meperformance SCT Handheld
    100 shot of Nitrous Dyno tune system
    SS front bumper
    Matching painted front grill and bow ties

  4. #4

    Default

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

  5. #5
    Legend
    TRPLXL2's Avatar
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    Default

    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.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  6. #6
    Legend 2ToNe04's Avatar
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    Default

    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

    2004 4.8| Custom Paint| Tint| De-badged| Shaved Tailgate| Rollpan| Smoked Tails| Color Matched| Lowered 5/8| Suede Interior| Color Matched Interior| Indash & TVs| Mids-Lows & 2 12" CVRs| 500 & 1100 Interfires| Soundeadener| Outlaw CAI| Magnaflow|
    Future Mods: 6.0 LQ4/9| Bags|

  7. #7

    Default

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

  8. #8
    Legend 2ToNe04's Avatar
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    Default

    youll want:

    cams
    longtube headers
    custom tune
    regear

    a magnacharger will help out alot.

    2004 4.8| Custom Paint| Tint| De-badged| Shaved Tailgate| Rollpan| Smoked Tails| Color Matched| Lowered 5/8| Suede Interior| Color Matched Interior| Indash & TVs| Mids-Lows & 2 12" CVRs| 500 & 1100 Interfires| Soundeadener| Outlaw CAI| Magnaflow|
    Future Mods: 6.0 LQ4/9| Bags|

  9. #9

    Default

    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. #10
    Master Mechanic zubbiez's Avatar
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    Feb 2009
    Location
    Eagle Mountain Utah
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    Default

    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 by zubbiez; 06-15-2009 at 10:13 AM. Reason: tried to add photo
    2000 Silverado Z71 Whipple Supercharger, JBA Headers,3" cat back Flowmaster Exhaust, Volant cai, Pioneer Preimer deck,Orion subwoofer,03 signal light mirrors,03 taililghts

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