Re: [Chrysler300] Spark Plug Question

[John Holst <jholst@xxxxxxxxx>]

Hello All,

Champion Spark Plug has a couple of pages on Plugs and how to assess
their naming and usage. I have included the links, and I had replaced the
8 plugs in my 'K' several years ago, with the generally accepted J12YC
with very good results. John Holst...

Here are the links:

https://www.championsparkplugs.com/learning-center/article/225/heat-range-conversion-chart

http://www.sparkplugs.com/Data/uploads/champion_numbering_system.jpg

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From: "Jim Maiani" <jmaiani@xxxxxxxxxxx>
To: Chrysler300@xxxxxxxxxxxxxxx
Sent: Friday, April 18, 2014 8:45:53 AM
Subject: [Chrysler300] Spark Plug Question

 
Hi Everybody.  I hope most of you are not looking at snow yet.  Unfortunately, here in northern Michigan, we are...
 
My survivor 1962 H needs new plugs.  (127,000 miles)  Iâ??ve read where the recommended plug is Champion J-9Y; and the 1-4bbl 413 wanted J-12Y.  The current plug (no idea how old) are Autolite 85.  The local Advanced Auto Parts says I need Champion J-12Y.  My friends say just get the J-9Ys.  If thereâ??s anybody in the world that would know for sure, itâ??s you guys.   Comments and opinions please.  Thanks in advance for your help.
 
Jim Maiani
Houghton Lake, MI
H
 

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