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Best spark plugs?

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Old Jul 9, 2012 | 02:14 PM
  #21  
fdkennedy's Avatar
fdkennedy
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I run e3 plugs in everything I own with good results. I know its an old post but what the heck.
 
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Old Jul 9, 2012 | 02:29 PM
  #22  
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Stock HD plugs Champion 6R12's have never failed me.
 
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Old Jul 9, 2012 | 07:10 PM
  #23  
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Anti seize on the threads? What about boot grease?
 
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Old Jul 9, 2012 | 07:24 PM
  #24  
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I put the NGK Iridium plug in the VRod heat range (DCPR8EIX) which is a cooler plug.
 
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Old Jul 9, 2012 | 07:28 PM
  #25  
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Really don't think that there are any "best."

They're all good.
HD
NGK
Autolite
E3

Take your pick.
 
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Old Jul 9, 2012 | 08:10 PM
  #26  
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Originally Posted by watercop
Stock for me
Me too. Never a problem.
 
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Old Jul 9, 2012 | 10:10 PM
  #27  
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are plugs all the same for all twin cams 96" and 88"?
 
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Old Jul 10, 2012 | 07:28 AM
  #28  
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Originally Posted by hedgehorn
are plugs all the same for all twin cams 96" and 88"?
The plugs for my 03 and 07 are the same.
 
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Old Jul 10, 2012 | 08:38 AM
  #29  
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Since the stock plugs are champion plugs, 100 percent identical....you can save some cents by buying champion instwad of harley....NGK is the only plug I ue and never had an issue.....
 
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Old Jul 10, 2012 | 10:16 AM
  #30  
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swamperca
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Don't have a preference, usually pick up Champion at the auto parts store.

Where is the Harley Davidson Spark Plug plant????
 
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