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Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: which plug would you use?
NGK TR6
111
45.12%
NGK TR55
135
54.88%
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NGK TR6 vs NGK TR55

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Old 03-11-2009, 02:53 PM
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where can you buy the TR6 plugs from?
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Old 03-12-2009, 11:24 AM
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O Reillys has them.
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Old 03-12-2009, 11:31 AM
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Advance Auto also!
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Old 03-12-2009, 11:43 AM
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Originally Posted by BriancWS6
O Reillys has them.
I do not have an O'Reillys by me

Will AutoZone or Pep Boys carry them?
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Old 03-12-2009, 12:05 PM
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almost any auto parts place should carry them.

I run TR6 in my cam only car because i have quite a bit of advancement in my timing. I have had no problems and it runs strong.
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Old 03-12-2009, 02:21 PM
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Originally Posted by TORCHD 02 TA
I do not have an O'Reillys by me

Will AutoZone or Pep Boys carry them?
I got some from a Kragen/Schukcs
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Old 03-13-2009, 02:31 PM
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The Auto Zones here do not have NGK. Advanced Auto has them too.
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Old 03-13-2009, 02:41 PM
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Originally Posted by BriancWS6
The Auto Zones here do not have NGK. Advanced Auto has them too.
Great thanks Brian!
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Old 03-13-2009, 03:22 PM
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looking at Advance Autos website... They do not have a TR6 plug. they have TR5...

G-Power Single Platinum; TR5GP; @ Gap .040 @

Iridium IX Series; TR5IX; @ Gap .040 @

V-Power Spark Plug; TR5; @ Gap .040 @

Laser Series Iridium Spark Plug; ITR5F13; @ Gap .040 @

ummm which one do i want??
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Old 03-13-2009, 03:48 PM
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Originally Posted by TORCHD 02 TA
looking at Advance Autos website... They do not have a TR6 plug. they have TR5...

G-Power Single Platinum; TR5GP; @ Gap .040 @

Iridium IX Series; TR5IX; @ Gap .040 @

V-Power Spark Plug; TR5; @ Gap .040 @

Laser Series Iridium Spark Plug; ITR5F13; @ Gap .040 @

ummm which one do i want??
V-Power Spark Plug; TR5.....then regap it to .055 The TR5 is a TR55, it just comes with a different factory gap so its called a TR5.
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Old 04-11-2009, 01:44 PM
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i dunno... i'm making about 450rwhp and I have the TR55's... they seem to be working good... I kept them at the gap out of the box... I think it was like .05
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Old 04-11-2009, 09:46 PM
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eric the goalie, where are you located?

i had tr6 in my car when i got it, and swapped to tr55. i noticed NO difference in idle, mid or high end performance.
cam and bolt on 346.
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Old 04-12-2009, 08:07 AM
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NAPA sells them too. I run TR6's in mine, idles better than the TR55's did.
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Old 05-06-2009, 09:19 AM
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Originally Posted by TORCHD 02 TA
where can you buy the TR6 plugs from?
I've got them for 18.75 to your door

I've also got TR7,8,9,10 as well
Last edited by 99blancoSS; 05-06-2009 at 12:15 PM.
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Old 05-07-2009, 02:05 AM
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Originally Posted by TORCHD 02 TA
looking at Advance Autos website... They do not have a TR6 plug. they have TR5...

G-Power Single Platinum; TR5GP; @ Gap .040 @

Iridium IX Series; TR5IX; @ Gap .040 @

V-Power Spark Plug; TR5; @ Gap .040 @

Laser Series Iridium Spark Plug; ITR5F13; @ Gap .040 @

ummm which one do i want??
they have them, just not listed for our cars since its not the stock heat range. napa and advance both should have them in stock.......
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Old 05-07-2009, 11:17 AM
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Tr55's burn hotter, better n/a plug. When you go nitrous make the switch to TR6's colder burning plug better for Nitrous Applications.
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Old 05-07-2009, 11:56 AM
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Originally Posted by 99Ls1fever
Tr55's burn hotter, better n/a plug. When you go nitrous make the switch to TR6's colder burning plug better for Nitrous Applications.
If you have stock CR... higher CR needs a colder plug also
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Old 05-26-2009, 02:34 AM
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A friend of mine just did a header swap on his TA. He replaced the plugs and wires and used TR55's. On one plug the ceramic part cracked as soon as he started tightening it. Then he had a misfire on #4 and #5. After checking the new wires over to ensure a better connection, he pulled the plugs and put in some AC platinum's laying around and the misfire went away. So I vote neither and say AC platinum plugs.
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