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Just curosity what kind of Spark Plugs is everyone using ?

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Old 07-31-2008, 05:59 PM
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Default Just curosity what kind of Spark Plugs is everyone using ?
WHat kinda of spark plugs is everyone Running is there NA 402 stroker motor ! NA ! and what gap does everyone have them gapped at ..
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Old 07-31-2008, 06:08 PM
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i run just about the same set up and i use ngkTR-6 if your spraying it. reg. ac delcos if no spray
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Old 07-31-2008, 06:11 PM
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Tr-7 for the 200 shot gapped at .35 Tr6 at .40 for na.
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Old 07-31-2008, 06:13 PM
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My 402 stroker motor is a naturally Asperated what gapping is correct ???


Originally Posted by Stroker_Bill
i run just about the same set up and i use ngkTR-6 if your spraying it. reg. ac delcos if no spray
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Old 07-31-2008, 06:15 PM
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I have TR55's gapped at .045 but i was told not too use TR6 unless i was Spraying .. and since my car is NA then im not .. but the car with Tr55's runs like **** at .045 gap

Originally Posted by ls1_doc
Tr-7 for the 200 shot gapped at .35 Tr6 at .40 for na.
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Old 07-31-2008, 06:21 PM
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man. maybe mine are tr55s. i cant remember. been a while since i changed em.
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Old 07-31-2008, 06:26 PM
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Originally Posted by Stroker_Bill
man. maybe mine are tr55s. i cant remember. been a while since i changed em.
Im pretty sure you have TR6's in your car right now.
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Old 08-01-2008, 05:40 AM
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TR6, 0.25 gap and 13lbs boost.
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Old 08-01-2008, 06:51 AM
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Autolite XP103
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Old 08-01-2008, 10:24 AM
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I sell 75% TR55, hi compression guys and power adds use the TR6
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Old 08-01-2008, 12:53 PM
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Originally Posted by 99blancoSS
I sell 75% TR55, hi compression guys and power adds use the TR6
Would 11:1 need TR55 or TR6? This is on a 383, normally aspirated, no nitrous or boost.

Would the TR55 possibly misfire in this motor????? Guess why I'm asking.....
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Old 08-01-2008, 12:58 PM
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some guys with 11:1 go to tr6's, most guys I should say.
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Old 08-02-2008, 10:42 PM
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Originally Posted by 99blancoSS
some guys with 11:1 go to tr6's, most guys I should say.
I bought the TR55-IX for my build..(11.6:1).. but after reading this I'm probably going to get the TR6's....
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Old 08-02-2008, 11:26 PM
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What are people running in L92 heads. According to GM AC 41-985. What is the NGK equivalent?
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Old 08-03-2008, 01:16 AM
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According to all the reference material I can find its the same as the others NGK's fpr LS1's... TR55 or TR6 or iridium or plat/irid
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