C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Spark Plug Poll

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Old Jul 2, 2002 | 02:05 PM
  #21  
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Default Re: Spark Plug Poll (XtremeVette)

i have delco r45ts in now but once i rejet my carb im getting rapid fires! :yesnod:
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Old Jul 2, 2002 | 06:45 PM
  #22  
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Default Re: (scorp508)

The March 2002 issue of Car Craft has a great article on Spark Plugs...learn something new everyday. :yesnod:
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Old Jul 3, 2002 | 12:17 AM
  #23  
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Default Re: Spark Plug Poll (XtremeVette)

I am trying boch + 4. I hope I like them becouse putting them in looks like a lot fo tight work. :smash: :chevy
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Old Jul 3, 2002 | 03:39 AM
  #24  
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Default Re: Spark Plug Poll (plumberh2o)

On my 88 I was using the Bosch Platinum 4202s I believe. They worked fine for a few thou, and then it would run poorly soon after. I then discovered the Rapidfires (No. 5) and found the best performance for many thousand miles. A plug change on my old 88 was a cake walk. On my 94 it looks a little differant, but I will know for sure as soon as I figure this high idle condition out. In addition, I will be using the Delco platinums on the LT1.
Cheers,
Robert
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Old Jul 13, 2002 | 09:43 AM
  #25  
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Default Re: Spark Plug Poll (XtremeVette)

I wanted to put in the NGK's but could not find them anywhere, so I went with the AC/Delco
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Old Jul 13, 2002 | 06:08 PM
  #26  
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Default Re: Spark Plug Poll (jaa1988)

NAPA usually has them, I ordered mine from Summit since I needed a bunch of other stuff.
They were around $1.99 ea.
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Old Jul 13, 2002 | 11:57 PM
  #27  
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Default Re: Spark Plug Poll (aggie88)

The latest NGK Irridiums absolutely kick*** Replaced original AC Delcos and the car smoothed out at idle and got SOTP feel. Tried the Bosch +4 -but caused my 95 LT1 to detonate.
You have peaked my interest. I currently run the AC 41-906 stock platinum plugs, I tried the copper NGK TR55's and didn't have much luck with them. So you can feel more power with the Irridium NGK's? Would these be the TR55VX plugs or another designation? I like the AC's okay, but the whole thing with the platinum pucks (that are rumored to sometimes come off) they have on them still sort of bothers me a little.
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Old Jul 14, 2002 | 11:03 PM
  #28  
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Default Re: Spark Plug Poll (Lone Ranger)

They are the TR55VX, they are irridium and I got them from sparkplugs.com.
It was a noticeable difference, but what came out were, I believe, the factory AC platinums with 42K miles. Try them, you won't be disappointed.
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Old Jul 15, 2002 | 12:52 AM
  #29  
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Default Re: Spark Plug Poll (XtremeVette)

Does anyone know what the part number is for the AC/Delco Rapidfires for an LT-1? Walmart is discontinuing AC/Delco from their shelves. They have the Rapidfires marked down to $4 for 2! I could not find a cross-reference sheet. Seems like a good deal to me! :yesnod:
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