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100,000 Mile Service Time

This is a discussion on 100,000 Mile Service Time within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by 2002ssslp FYI - Iridium plugs are pre-gaped don't need to be touched. The tip is very pointed ...

  1. #21
    Experienced Old Fart jfl330's Avatar
    Join Date
    Mar 2011
    Tampa, FL

    '02 35th SS LE SLP#1084

    Quote Originally Posted by 2002ssslp View Post
    FYI - Iridium plugs are pre-gaped don't need to be touched. The tip is very pointed and you could damage the plug with a gap gauge.
    To what? GM changed their mind a few times about what to have the gap set at. I trust no one, measure or test everything.
    35th Anniversary LE # 167 SLP # 1084

  2. #22
    Super Moderator
    pajeff02's Avatar
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    Feb 2009
    Mansfield, PA

    Black & Blue
    '02 WS.6 / '07 Suburban

    Go with .040"

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