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Replace Spark Plugs at 100,000

This is a discussion on Replace Spark Plugs at 100,000 within the Internal Engine forums, part of the LSx Technical Help Section category; Ok.. it is time this gets done. I have looked a bit on some forums, other LS1 engine type. Seems ...

  1. #1
    Junior Member LA Girl99's Avatar
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    Cool Replace Spark Plugs at 100,000

    Ok.. it is time this gets done. I have looked a bit on some forums, other LS1 engine type. Seems some tend to stay with stock if you are not drag racing. I have seen iridium vs. platinum vs. copper. I have the plats right now. Is one better than the other? Engine is all stock, now that the warranty is almost over, changes will be coming. My baby NEEDS to growl.

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    Senior Member Justin23454's Avatar
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    SOM
    1998 Trans Am

    I hear iridium is better and MD wires.

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    Junior Member LA Girl99's Avatar
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    2002 Z28 Camaro

    So I should also replace the plugs wires too? Sorry but I am just getting to know my way around this engine and don't know too much about standard replacement parts done at different times. Car has only seen the mechanics at the dealers, the paint shows it too!

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    Senior Member Danger731's Avatar
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    Have someone check the ohms / resistance of the wires with a fluke. If they are ok then keep 'em another 25 k and recheck. That can save you money. I here that platinum is not so good.

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    98 formula

    You say changes are gonna be made.Are you going N/A or is nitrous gonna be used?

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    Quick Silver
    2001 Coupe

    I am at the same stage in my 2001 Corvette. Just broke 100k

  7. #7
    Cant duck it fuck it theslow00's Avatar
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    personaly my car felt a lot better after i changed the plugs to ngk's car seems to love it.

  8. #8
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    2000 hwaypatrol commodore

    some these so called premium spark plugs cant cut the mustard after a fraction of their lifespans
    as i speak i am running copper gold sereis champions on the other car
    never even looked at them since 2001!
    go figure .

  9. #9
    Senior Member INMY01TA's Avatar
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    2001 Trans Am (sold)

    My car has 46,000 miles and I've changed mine like 3 or 4 times. NGK copper.

  10. #10
    Member 98ls1blackbird's Avatar
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    1998 Trans am

    If the original AC Delco Irridium plugs made it the first 100k, it doesnt seem they work that bad. If the engine is non nitrous, use irridium, if you dont mind changing them a lot use copper.
    98 Trans Am, A4, 3.73, 3200 Vigilante, LCA's, reloc brackets, sfc's, panhard bar, adjustable torque arm, XS long tube headers, ORY, SLP CNC ported heads and all the free mods tuned with EFILive.
    Best 1/4 et 12.53
    Best 1/4 mph 107.78
    Best 60' 1.71

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