Spark Plug Gap..

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12-27-2011, 04:03 PM

r0llz1104

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Spark Plug Gap..

just bought a set of tr55ix NGK spark plugs for my LT1. What i want to know is. Do these babys need to be gapped? or do they already come pregapped, ready for install?

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12-27-2011, 04:57 PM

nascarnate326

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I threw mine in as they came. Cant remember but they were gapped correctly. I want to say .45 or .50.

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12-27-2011, 05:02 PM

warriorcustoms

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after checking the 1st hundred NGK plugs in seadoo watercraft & the plugs bein spot on I just install em now lol

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12-27-2011, 09:26 PM

r0llz1104

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thanx guys i kind of figured. they come pregapped at .55 already.

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12-27-2011, 09:54 PM

RamAir95TA

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Stock gap is .050", not .055", so there would be no benefit in opening up the gap.

It takes a few seconds per plug to verify/change the gap. ALWAYS check before putting them in.

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