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Tr55 gap??? Asap!

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Old 08-07-2010, 09:51 AM
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Default Tr55 gap??? Asap!
I'm just fixing to gap the plugs, they are not iridium (spelling)... Truck is 6.0 stock long block N/A no FI... Thanks!
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Old 08-07-2010, 10:06 AM
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TR55's are preset to be near a .060" gap.

If you're wanting a gap near .040" (like the factory iridiums) you need to buy TR5's
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Old 08-07-2010, 06:29 PM
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.050-.060 will do you fine, a quick search would have gotten you the answer ASAP
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Old 08-08-2010, 12:52 PM
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Originally Posted by 00ChevyScott
TR55's are preset to be near a .060" gap.

If you're wanting a gap near .040" (like the factory iridiums) you need to buy TR5's
i always check the gap before installing. the preset gap is never right.
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Old 08-08-2010, 12:58 PM
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I always gap them about .045 for n/a and .035 for f/I or nitrous
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Old 08-08-2010, 01:01 PM
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i stay between .055 and 060
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