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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Spark plug gapped oddly

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Old 10-10-2009, 11:56 AM
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Default Spark plug gapped oddly
Hey everyone. I'm swapping spark plugs in my lt1 and plug 1 is gapped at .065. Is this from old age?
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Old 10-10-2009, 01:35 PM
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If the electrode is excessively worn, then I assume yes.
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Old 10-11-2009, 03:19 AM
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If you have a Platinum or Iridium tipped plug, it may have fallen off... But I think the gap would probably be closer to .100" if that was the case.
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Old 10-11-2009, 01:54 PM
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These look to be stock plugs. Anyway, all 8 were swapped. On some of them, the threads were a little oily, but not the tips. Is it normal?
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