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more power for a 5.3

This is a discussion on more power for a 5.3 within the General Help forums, part of the LSx Technical Help Section category; i need more power for my 5.3 silverado. it's a 2000. i already have the volant intake, and flowmaster exhaust. ...

  1. #1
    Junior Member eric69cam's Avatar
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    2000 silverado 5.3

    more power for a 5.3

    i need more power for my 5.3 silverado. it's a 2000. i already have the volant intake, and flowmaster exhaust. i don't want to waste money on a MAF or TB spacer. what is something that will be useful and noticeable on a budget.

    also - my truck is equipped with the secondary air pump to the left of the motor. can i remove this if so how. and if i do is there any benefit other than more appeal when i look under the hood and don't have to see the bundle of crap over there.

  2. #2
    CAM mmmmmm... Toes's Avatar
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    WHITE
    2000 Z28 M6

    Electric fan...LS6 camshaft

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    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    there's alot you can do. how far do you want to go into the motor?

  4. #4
    Junior Member eric69cam's Avatar
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    2000 silverado 5.3

    well... for now no further inside the motor than a cam and maybe rockers... bolt -ons are open game. i really would like some info on interchangeable parts from the LS1's and 6's. i plan on taking a cam from the LS6 for as i've been told that with the mods i have done now it'll gain 50 rwhp. minus the fact that i still need the pcm tuned... plus i really want to get my hands on some electric fans. i'm also up to ideas as i'm sure there are plenty of things i'm not thinking of.

    -- anyone know how the "corvette" servo in my 4L60E will benefit my truck?

  5. #5
    Junior Member eric69cam's Avatar
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    2000 silverado 5.3

    i looked at nelson performance for the pcm... it looks like not too bad a deal for the whole pcm thank you for the reference

  6. #6
    Senior Member SeVeReDiStOrTiOn's Avatar
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    05 Wrangler
    00 Z28 sold :-(

    You'll see a good gain but I doubt you'll see 50rwhp gain with a ls6 cam....since you're going to do a cam swap might as well make it count and get a custom cam.
    Here's the specs on the ls6 cam...

    2001 LS6 cam

    207/217 int/exh @ 0.05" duration
    0.525" / 0.525" int/exh lift
    116 LSA

    2002+ LS6 cam

    204/218 int/exh @ 0.05" duration
    0.551" / 0.547" int/exh lift
    117 LSA

    Also you'll see better gains if you ditch the chambered flowmaster and get a straight-through muffler like magnaflow. Like the other said, a tune will really help also.

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    Senior Member Danger731's Avatar
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    MOTOR CITY MARO' SSTODD's Avatar
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    PEWTER
    2000 CAMARO SS #3821

    underdrive pulley and port/polish t.b. cheap and easy gains.

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