smoothdime Posted October 4, 2010 Report Share Posted October 4, 2010 Just as the title says whats the difference. the tr5ix #7397 is what comes up when you look up by application. but everyone says to run the tr55ix #7164. just wandering what the difference or improvements are when running these plugs. thanks gary Quote Link to comment Share on other sites More sharing options...
smoothdime Posted October 4, 2010 Author Report Share Posted October 4, 2010 with some more searching i read they are different gaps. .060 vs. .040? is that the only thing? Quote Link to comment Share on other sites More sharing options...
Cramer Posted October 4, 2010 Report Share Posted October 4, 2010 http://www.silveradoss.com/forums/index.php?showtopic=63344 This should help Quote Link to comment Share on other sites More sharing options...
smoothdime Posted October 4, 2010 Author Report Share Posted October 4, 2010 ya i read that one already. just looking for a little more specific info as to the difference or reason for using the 7164. if this is the plug we should run why does everyone list the 7397 as the one we need? Quote Link to comment Share on other sites More sharing options...
ApacheBL Posted November 17, 2010 Report Share Posted November 17, 2010 Smoothdime, I have the same question. NGK website says that the tr5ix is our Iridium plug, but everyone seems to say that we should be running the 55. What, if anything, did you eventually find out about this? thx Quote Link to comment Share on other sites More sharing options...
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