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Hemi Spark plug theory :) 8 plug Change Instead of 16

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  #11  
Old 09-17-2013 | 03:00 PM
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For as cheap as a copper plug is I always change them all.
 
  #12  
Old 09-22-2013 | 04:52 PM
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I switched to nkg Platt plugs, no more of this copper plugs with short change intervals, I change my own plugs, so that off sets additional costs of Platt plugs.

no issues, but I'm running a cooler plug, going cheap only allows you to pay more sooner than later, when plugs are due, change all 16.
 
  #13  
Old 09-22-2013 | 05:08 PM
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Originally Posted by cyclone429
I switched to nkg Platt plugs, no more of this copper plugs with short change intervals, I change my own plugs, so that off sets additional costs of Platt plugs.

no issues, but I'm running a cooler plug, going cheap only allows you to pay more sooner than later, when plugs are due, change all 16.
The change interval is still 30K. I'm about to do mine at 35K, in conjunction with replacing the valve springs The plug gaps on the ones I'm removing are in the .0050 range, so it's definitely time.
 
  #14  
Old 09-23-2013 | 04:39 PM
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If you're gonna deal with taking all the coils off, might as well spend the extra $15 to do all of em.
 
  #15  
Old 09-23-2013 | 05:41 PM
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If you throw a P0300, you've got a problem, IMO, your truck, don't worry about it.
 
  #16  
Old 12-02-2018 | 04:12 PM
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Originally Posted by Gone Fishin
You might check out rockauto.com, they have oem replacement plugs for under $3.00
You may have to change them every 30K but its better than undesirable engine performance.
Rockauto is very good.
 



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