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Baseline Spark Plug - First Startup

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Old 08-13-2020, 11:55 AM
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Default Baseline Spark Plug - First Startup
Hello Everyone,
Can someone chime in to where they think I should start with spark plugs? The build is pump gas 440 inch LS7, around 12:1 CR, 278/286 .718 .702 112+4, and 100-200 shot of nitrous.
Thoughts on what plugs to start with?

Greatly Appreciated
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Old 08-13-2020, 02:04 PM
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NGK TR7 would be a good plug to start out with.
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Old 08-13-2020, 03:07 PM
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Originally Posted by R6cowboy
NGK TR7 would be a good plug to start out with.
I agree. 434 here 12.42:1 compression, LS7 heads. NGKTR7IX plugs. You’ll want a 7 heat range regardless of brand for starters.
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Old 08-14-2020, 11:17 AM
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Originally Posted by R6cowboy
NGK TR7 would be a good plug to start out with.
Originally Posted by Che70velle
I agree. 434 here 12.42:1 compression, LS7 heads. NGKTR7IX plugs. You’ll want a 7 heat range regardless of brand for starters.
Thank you gents - I appreciate it!
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Old 05-03-2021, 07:48 AM
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Originally Posted by Gordon0652
Hello Everyone,
Can someone chime in to where they think I should start with spark plugs? The build is pump gas 440 inch LS7, around 12:1 CR, 278/286 .718 .702 112+4, and 100-200 shot of nitrous.
Thoughts on what plugs to start with?

Greatly Appreciated
NGK TR7's gapped at .035 would be a great start.
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