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Discussion Starter · #1 ·
i have a 1991 corvette convertible with the L98 motor. what is the propper gap i should put on my spark plugs i just bought new bosch platinums, and some taylor wires, and cant find anything about how much the plugs need to be gapped..... HELP:huh:
 

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Not sure in your case but most cars from GM I've seen usually have the gap specs right under the hood on one of the white labels. Maybe check around the radiator/fan shroud area. Hope you find it.
 

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DC Crew
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Your plugs should be gapped at .035, I just did my plugs last month :D
 

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:agree: Yes i recently did mine and it was .035. Not sure if the gap is wider or not since yours is a 91, but mine is an L98 as well.
 
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