Spark plug help fast!
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Joined: Dec 2005
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From: NJ
Spark plug help fast! Hey guys I'm in the middle of the LT install and pressed for time (getting dyno tuned tomorrow). I wasn't planning on doing plugs, but I figured why not. The car had Denso Iridiums and was running great, but I can't find them anywhere. Are Ac Delco Iridiums good to use? I know they cost $7 each but I don't care as long as they are good plugs and will last me a while. And what should they be gapped at? Thanks guys.
Originally Posted by SLO98Z
Do not gap the iridium plugs. You could possibly break the iridium electode. They should be "just right", out of the box.
I just put a set of NGK TR-55IX's (iridium) in my car and noticed no difference from the NGK TR-55's, runs great with either.
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Originally Posted by TheBlurLS1
I just put a set of NGK TR-55IX's (iridium) in my car and noticed no difference from the NGK TR-55's, runs great with either.
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most people get the ngk v-power's which is a copper plug, but ngk also sells platinum that runs around the same price as the iridiums. Myself, i got the ac delco just to keep everything the american muscle way.
