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Spark Plug Gap

This is a discussion on Spark Plug Gap within the Technical / Maintenance forums, part of the General Discussion category; How big should the gap on the plugs be for a '96 Silverado with the 5.7 vortec?...

  1. #1
    Need Money BaMaDuDe87's Avatar
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    Spark Plug Gap


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    How big should the gap on the plugs be for a '96 Silverado with the 5.7 vortec?
    DD: '04 Hoe (Dark Gray Metallic) ~ Painted bowtie/rear pillars, Antenna delete, 6-Hi Mod, 35w 6000K Lows/Fogs, Debadged
    The Baby: '96 Z71 RCSB (White) ~ 3" PA Body Lift, 15x10 Eagle Alloys, 33x12.50 Mud Rovers

  2. #2
    s10er8
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    Re: Spark Plug Gap

    it should say on the emissions label but usually it's .035"

  3. #3
    Suburbanite Jacqson's Avatar
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    Re: Spark Plug Gap

    Quote Originally Posted by BaMaDuDe87
    How big should the gap on the plugs be for a '96 Silverado with the 5.7 vortec?
    The Gap should be .060".

  4. #4
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    Re: Spark Plug Gap

    It says right on the emissions sticker - .060".
    1998 GMC Sierra Z-71 extended cab - stock with 161,000 miles and counting!

  5. #5
    Homesick NBer
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    Re: Spark Plug Gap

    its .060 on all the vortecs, pre 95 it was .035.
    2003 Chev Silverado 4x4 4.10 gears and it has a 4.8L
    1997 GMC Sierra 4x4 4.3L 4L60E KOSS CD player,16mpg,3.73 gears z71 skid plates <<<sold

    4th year apprentice at Chev Dealer

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