LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Spark plugs for stock LT1

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Old May 8, 2009 | 10:41 PM
  #1  
Camm95Z28's Avatar
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From: Pottsville, Pa. 17901
Spark plugs for stock LT1

As stated, my question is which brand spark plugs are the best for a stock LT1? I am leaning towards AC Delco, but see Autolight's name pop up alot here. Thanks
Old May 8, 2009 | 10:45 PM
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1eyedmaro's Avatar
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ngk tr55
Old May 8, 2009 | 10:45 PM
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BLKOUTZ28's Avatar
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From: Dayton, Ohio
autolite 103's
Old May 8, 2009 | 11:15 PM
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I've been using AC-Delco Rapidfires for years.
Old May 9, 2009 | 10:57 AM
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caldercay's Avatar
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From: Cypress, TX
Originally Posted by 1eyedmaro
ngk tr55
.+1
Old May 9, 2009 | 11:03 AM
  #6  
hey01's Avatar
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ones you don't have to change often.
Old May 12, 2009 | 09:55 PM
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foxbat's Avatar
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ac delco
Old May 13, 2009 | 04:47 AM
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From: tracy
Originally Posted by caldercay
.+1

+2 ngk tr55 been using for over a year problem free
Old May 13, 2009 | 05:52 AM
  #9  
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Originally Posted by shoebox
I've been using AC-Delco Rapidfires for years.
Me too, no problems.
Old May 13, 2009 | 06:23 AM
  #10  
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From: Kissimmee, Fl, USA
TR55IX....they'll outlast your car.

I had trouble with the stock AC plugs as the platinum pucks fell off, opening up the gap, making the idle rough.
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