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L83 Sparkplug

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  • L83 Sparkplug

    Hey guys,

    I was wondering about the performance of the stock plugs in performance applications and any options for colder/better ones. I pulled one out of my Sierra for comparison against an plug for an LS motor. It is clear that the relocation of the plugs in the head required a longer unit so the most common plug options are out.
    Click image for larger version

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