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06 HHR spark Plugs

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Old 11-18-2013, 08:31 AM
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06 HHR spark plugs
Time to change spark plugs, which ones are best? Thanks
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Old 11-18-2013, 08:36 AM
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AC Delco's, bar none!! and I have tried several different brands over the last 10 years in my 03 Sunfire GT 2.2 and my 07 HHR 2.2. the AC Delco's are the best IMHO
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Old 11-18-2013, 03:20 PM
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^^^X2^^^^

AC DELCO Iridium at the standard heat range (unless you increased HP by about 100).
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Old 11-18-2013, 04:29 PM
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yep yep..like the others said AC Delcos all day every day!!

thread can now be closed haha
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Old 11-18-2013, 04:33 PM
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Originally Posted by skyline26
thread can now be closed haha
not that this hasn't been covered enough already.
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Old 10-03-2017, 03:14 PM
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06 HHR spark Plugs
What is the best plugs to put in my 06 HHR larger engine. Thanks
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Old 10-03-2017, 03:24 PM
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41-103 AC Delco iridium,

https://www.summitracing.com/search/...-size/2-4l-145


Do not gap them they come gapped
Do not over tighten them , finger tight then 15ft lbs
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Old 10-03-2017, 04:04 PM
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A little anti-seize or a smear of oil on the threads is a good idea, too.
Aluminum head, loong threaded part, may tend to bind up.
Cheers!
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Old 10-03-2017, 04:15 PM
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The General says no to the antiseize on the plugs.
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Old 10-03-2017, 04:23 PM
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Originally Posted by RJ_RS_SS_350
The General says no to the antiseize on the plugs.
Because Anti-seize encourages over tightening. The plugs are steel, the head is aluminum alloy. If you King Kong the plugs in you can easily pull the threads out of the head.
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