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Thread: What type of spark plug do you prefer

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  1. #1
    Join Date
    Sep 2008
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    What type of spark plug do you prefer

    What choice of plugs do you guys usually go with?

  2. #2
    Join Date
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    ask mean05. I cant remember exactly what he had me buy. I know they are NGK. He told me at least 3 good reasons to run them. Sold me on them

    06 Intimidator SS- Tuned, CAI -DD
    03 Silverado- Last incarnation 13.6... RIP
    Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
    "Seize the day like you seize your noodle" - Shin Chan

  3. #3
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    wow this is a new one !ngk tr6 .
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .

  4. #4
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    TR55 on a stock engine, TR6 on boosted or mild nitrous setups
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
    Join Date
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    old setup on motor was the NGK TR55 and with the bottle NGK TR6
    Quote Originally Posted by DamnYankee View Post
    lol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
    sprayedenali: i like catching, but not fishing
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  6. #6
    Join Date
    Jul 2008
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    AC Delco 41-985 Iridium.

  7. #7
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    Quote Originally Posted by Madd Maxx View Post
    AC Delco 41-985 Iridium.
    +1

    That's what I run and love them.
    2002 Silverado 2500HD LB7 CCSB LT
    EFI Live by Rob at ATP, Edge CTS Insight DSP 5 control, S&B CAI, PPE boost valve, Pro Fab AIH, AirDog II 165, PPE WIF sensor delete plug, 5" stainless exhaust, Cognito braces & HD tie rods, H2's 315/70 R17 BFG's

    2004 Tahoe LT
    2006 Silverado Z71 LS
    1971 Chevy C10

  8. #8
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    Quote Originally Posted by Madd Maxx View Post
    AC Delco 41-985 Iridium.
    +2

  9. #9
    Join Date
    Sep 2008
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    I did a search and it looks like the TR55 is what im going to go with. Should I go with the Iridium or not?

  10. #10
    Join Date
    Mar 2006
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    Phoenix, AZ
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    Quote Originally Posted by 02RADO View Post
    I did a search and it looks like the TR55 is what im going to go with. Should I go with the Iridium or not?
    No, the regular ones work just fine. Iridium is much more expensive. I had iridium plugs once, spent $80 on the set. I now have regular ones that cost $17 for a set and noticed absolutely no difference.


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


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