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  1. #1

    Default What spark plugs should i use?

    Hello again, anyone know what are good spark plugs?
    Autolite? AC Delco? i have 107+k miles on my truck and as far as i know i still have the factory plugs.
    Thanks
    Cheers from NJ
    '00 1500 4x4 4.8l
    single glasspack
    daily driver/workhorse

  2. #2

    Cool what spark plugs should I use

    Ive tried all the latest spark plug fad over the years and Ive found with a stock to slightly mod. engine, the original brand and heat range works best. I think you said you had over 100,000 on your original plugs. I think that speaks for itself.

  3. #3

    Default

    Quote Originally Posted by nos351wcm View Post
    Hello again, anyone know what are good spark plugs?
    Autolite? AC Delco? i have 107+k miles on my truck and as far as i know i still have the factory plugs.
    Thanks
    Cheers from NJ
    I stayed with A/C Delco Iridium Plugs,and I have been pleased with Performance I've received from them.Also you may want to throw on a Set of New Wires.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  4. #4

    Default

    Don't get the Bosch +4 quad tip plugs! No matter how many times I torque them down, a few keep coming loose in my 2003 Silverado and it is a known issue with those plugs. Definitely not worth $8.50/plug. I wish I would have know about it before I got them. Oh well. Live and learn.
    Current Daily Driver:
    2003 Chevrolet Silverado 1500 - 4WD - 4.8L V8 - True Dual Exhaust Setup, Cat Delete, Cherry Bomb Glass Packs

  5. #5

    Default

    Quote Originally Posted by 99'HEARTBEAT View Post
    I stayed with A/C Delco Iridium Plugs,and I have been pleased with Performance I've received from them.Also you may want to throw on a Set of New Wires.
    X2 Go with the factory

  6. #6

    Default

    Thanks guys, i went with autolite. At 1.50 a plug on a stock engine, i think theyll do just fine. gapped em and put them in today, truck runs great.
    Cheers from NJ
    '00 1500 4x4 4.8l
    single glasspack
    daily driver/workhorse

  7. #7

    Default

    My owners manual lists two stock plug numbers,one is for AC Delco and the other is for NGK.I use the stock NGK and it works great.


    03 Chevy Silverado 1500 ext cab Z-71
    79 AMC Spirit GT
    77 Olds cutlass supreme

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