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98 vortec sparkplug gap

Discussion in '96+ Vortec Performance + Computer Swaps' started by 98gm1500, Jul 29, 2013.

  1. 98gm1500

    98gm1500 Newbie

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    hey guys, new to the fairly new to the chevy game, doing a tuneup on the truck and was wondering what guys are recommending for spark plug gap on a 98 vortec 350? ngk plugs going in it if it matters, appreciate the help!
     
  2. 95C1500

    95C1500 ┌П┐(◣_◢)┌П┐

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    I know it's .035" for my tbi. I don't know if the vortecs are different.
     
  3. 98gm1500

    98gm1500 Newbie

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    i thought the sticker under the hood said .035 but i honestly can't remember, i may be wrong, wasn't sure if people differed from stock either with better results?
     
  4. 95C1500

    95C1500 ┌П┐(◣_◢)┌П┐

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    Cole tried .045" and said his truck ran like crap.
     
  5. slippy3002

    slippy3002 Master Machinist

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    I believe most Chevy's are .035

    Sent from Robland
     
  6. 95C1500

    95C1500 ┌П┐(◣_◢)┌П┐

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    he heard someone say it was better for performance
     
  7. bluex

    bluex Mall Crawlin' MOFO!!!

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    Vortecs are .060" because they have a better ignition system.

    Tbi an older carb motors are .035"
     
  8. bluex

    bluex Mall Crawlin' MOFO!!!

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    My underhood sticker

    [​IMG]
     
  9. slippy3002

    slippy3002 Master Machinist

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    That is some crazy spark!

    Sent from Robland
     
  10. bluex

    bluex Mall Crawlin' MOFO!!!

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    I have a better coil an module in mine an they call for a .065" gap....
     

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