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Thread: spark plug gap?

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    Default spark plug gap?

    Getting ready to do the plugs on my 6.0L vortec. My Haynes manuel says the gap should be 0.060 but the pre gapped plugs I have are at 0.055.....where should they be? I'm also replacing the wires but the new ones don't have the metal heat shield on them. Will that be a problem? Thanks...
    Last edited by jtb11872; 12-29-2011 at 08:47 AM.

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