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Spark plugs - LS3 conversion guys

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Old Jan 4, 2019 | 12:49 PM
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Default Spark plugs - LS3 conversion guys

Hey guys, which spark plugs are you using in your LS3/lSX engines, i do like a ngk

?
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Old Jan 4, 2019 | 01:06 PM
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Originally Posted by corvettedave383
Hey guys, which spark plugs are you using in your LS3/lSX engines, i do like a ngk

?
Crate motor has AC-Delco 41-985, 0.040 gap. Not sure if they will ever need changing.
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Old Jan 4, 2019 | 01:25 PM
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Originally Posted by ignatz
Crate motor has AC-Delco 41-985, 0.040 gap. Not sure if they will ever need changing.
yep thats what my new engine has come with, might need a change for a higher heat range version, for turbos
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Old Jan 4, 2019 | 02:25 PM
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Just running the stock AC Delco LS3 plugs. No turbos but yes turbos might require different plugs. I would go onto LS1 tech and see what the turbo guys are running.
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Old Jan 4, 2019 | 04:49 PM
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Ok cheers, will do
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