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Autolites cracking

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Old 04-24-2006, 04:19 PM
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TR55'* are also copper plugs.
Old 04-24-2006, 04:20 PM
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Originally Posted by BillBoost37
TR55'* are also copper plugs.
How spendy are they? If they are cheap it might be worth a try. And are these the stock heat range?
Old 04-24-2006, 04:23 PM
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Same range as the Autolites. Around a buck a plug.
Old 04-24-2006, 04:30 PM
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Originally Posted by BillBoost37
Same range as the Autolites. Around a buck a plug.
In that case I will see if I can find a set. Is there any place in particular that is more likely to carry these?
Old 04-24-2006, 04:31 PM
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Parts America chain
Checkers/Advance Auto...
Old 04-24-2006, 04:34 PM
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Originally Posted by jr's3800
I think the TR55 would be equall to the 605'*... And I too have ran the 606 with no issues in the past.. But I found myself liking the AC Delco 41-606 better, also the AC Delco Rapidfire 14... That is untill I found out about the TR55... I reccomend the NGK'* for any 3800..

As for the Autolites I wouldn't reccomend aginst them.. But we will tell you to steer clear of Bosch plugs, 3800'* just don't like them..
I was unaware that the L36 hated Bosch as bad as the L67 does. A Bosch plug in an L67 is about as good as screwing a stick of dynamite into the cylinder from what I've heard.
Old 04-24-2006, 08:33 PM
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The NGK TR55 is also known as the NGK 3951.
Old 04-24-2006, 08:44 PM
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I'll STRONGLY back up the NGK TR55 (this is the stock number). These are the V-Power line. Much more effective and longer-lasting than the splitfire idea.

I run the TR55 in winter in the SSEi, and the TR6 in summer. The SLE gets the TR55 year-round.


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