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#2
04-06-2008, 06:37 PM
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Re: spark plug gap?
Look on the emissions label and it shpould say on there for the gap.Most of the newer GM plugs and NGKs should be pre gapped,have a sleeve on the spark thread to protect them from shipping
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#3
04-06-2008, 09:06 PM
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Re: spark plug gap?
Most makers of Iridium and Platinum plugs strongly suggest not re-gapping. You could do more damage (like knocking off one of the Platinum/Iridium discs or mis-aligning them) than good (getting the gap exactly spot on). If any look questionable, take them back and ask for new ones, and inspect them before you leave the store for obvious issues.
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 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#4
04-06-2008, 11:14 PM
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Re: spark plug gap?
The NGK V Power spark plugs are similar to the Autolite Copper Core and have a solid copper core. They are not Iridium or Platinum and can be re-gapped. The recommended gap is .055”-.057”. For a GT with the L36 SII 3800 and no mods gap them at .057". For GTP with the L67 it depends on the the size of the supercharger pulley. Typical V-Power plugs used are either the TR55 or TR6 heat ranges.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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