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New spark plugs

This is a discussion on New spark plugs within the General Help forums, part of the LSx Technical Help Section category; Im putting new plugs in my 2000 ss camaro they are AC delco 41-110 they are set at 040 should ...

  1. #1
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    2000 ss camaro

    New spark plugs

    Im putting new plugs in my 2000 ss camaro they are AC delco 41-110 they are set at 040 should i change them to 060.

  2. #2
    Former Mopar Man 2002ssslp's Avatar
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    I like the Denso iridium plugs because they last forever. They will be the last plugs your car will ever see which is good because they can be a bitch to change. Always gap your plugs at 0.040 no matter what the brand or what type unless you are using NOS, Turbo or Supercharger.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

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    None Shall Pass Knight's Avatar
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    I would leave them at .04.

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    Member bryceslu's Avatar
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    .040 is for iridium plugs and .060 would be for non iridium plugs. This is per GM service bulletin.

  5. #5
    Former Mopar Man 2002ssslp's Avatar
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    Quote Originally Posted by bryceslu View Post
    .040 is for iridium plugs and .060 would be for non iridium plugs. This is per GM service bulletin.
    Can you post that TSB ?

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    Member herculesrider1's Avatar
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    I've heard that if you use the Iridium plugs, they will be the last plugs you ever have to install "because they last forever".... I have been changing my own spark plugs since I was 15 yrs. old on my '69 Camaro, and use to change them about every 25K. But with the advent of the new motors, they say 100K is possible, and even on my '98 T/A, I got 100K out of the plugs before it started missing...hallelujah! Has anyone gone longer than 100K with Iridium plugs????

  7. #7
    Spaz is My Mentor SMWS6TA's Avatar
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    Damn I wish I can find an article that I post a couple yrs ago about this subject.

    Let me see if I can remember the info...


    Plugs - Iridium vs Platinum vs Copper

    Iridium - last long time, (good for 100k miles) they do wear out over time. Spark and burning of fuel well (not great) does not get as hot as copper.

    Platinum - The plug in the middle - decent mileage around 65-70k miles, Spark & fuel burn is in not as hot as copper but not as cool as iridium.

    Copper - short life - 25k miles, Hot spark and most intense in fuel burn. (Racers love 'em) Negatives - frequent plug changes.


    Iridium plugs are great for daily driven cars, but not so good for hot rods.

  8. #8
    Member herculesrider1's Avatar
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    '00 TransAm RamAir WS6 M6

    Thanks Scott. I use to use Champions for that very reason...hotter spark, but that was in a car with headers and a firewall you could see....With T/A's, I think I'll stick with the long life ones...Now if I was racing it, trying to get a tenth or two out of her, then maybe copper, but it's just a daily driver and I don't have a garage, so, shade tree mechanicing insists upon the least maintenance. Thanks man.

  9. #9
    Former Mopar Man 2002ssslp's Avatar
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    I like NGK for copper plugs and Delco double platinum and Denso Iridium. JMO
    pajeff02 likes this.

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