Generation III Internal Engine 1997-2006 LS1 | LS6
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which plugs should I run

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Old May 29, 2020 | 07:42 AM
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billymgb1000's Avatar
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ok so I have a 5.3 with flat tops and my cam is 228/230 .585/.585 lift 112. And I run a new Demon 625 carb. So what plug should I be running. I searched but I couldn't find my set up. Any help would be awesome, Thank you.
Bill g
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Old May 29, 2020 | 07:49 AM
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tr6 is what I use, or some factory plugs witch ever is available
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Old May 29, 2020 | 08:08 AM
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Thank you LS7colorado
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Old May 29, 2020 | 08:38 AM
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I would try tr55 first. You have to be making a lot of power na to need a TR6.
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Old May 29, 2020 | 10:25 AM
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Originally Posted by QwkTrip
I would try tr55 first. You have to be making a lot of power na to need a TR6.

haha your right!! I have tr55 in my 6.0 I had Tr6 on my mind for a turbo build

I also have ran stock plugs with great sucess
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Old May 29, 2020 | 05:03 PM
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TR55 @ .050 seems to work great for most NA LS engines.
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