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This is the stock replacement sparkplug for your LS1 & LS2 application and is recommended for all stock engines. Our Recommendation for the initial setting is .040", depending on your current modifications!
Warning: Increasing the Sparkplug gap over .040" may cause blow-out of this Sparkplug, as explained to us by the Manufacturer, for being gapped too wide!
Warning: Increasing the Sparkplug gap over .050" may cause blow-out of this Sparkplug, as explained to us by the Manufacturer, for being gapped too wide!
Click
here to link to NGK's website for more info on the Iridium IX sparkplugs, sparkplug FAQ, Tech Tips, and Install Instructions. |
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