What Spark Plugs
08-13-2008, 06:05 PM
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What Spark Plugs with my car nearing 50K miles, I want to look into sparkplugs.
Besides Ac Delco's plugs, What other choices have been good for a LS4?
I run NGK's in my LT1 with no issues, how are they on LSX based cars?
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Besides Ac Delco's plugs, What other choices have been good for a LS4?
I run NGK's in my LT1 with no issues, how are they on LSX based cars?
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08-13-2008, 06:28 PM
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I run Autolite Iridiums in mine. The part number I run is XP5243. Some run XP104's too. 104's are 1 heat range colder and 5243's are 1.5 to 2 heat ranges colder. I have had no problems thus far. I get 2 more mpg too.
-Mike
-Mike
Last edited by Mgpeagle; 08-13-2008 at 08:54 PM.
