RE: {Chrysler 300} Spark Plugs in 413.

That’s enough reason right there to buy a set!!

From: 'Val Jeffers' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Monday, December 12, 2022 8:24 AM
To: Noel Hastalis <cpaviper@xxxxxxxxxxx>
Cc: John Grady <jkg@xxxxxxxxxxxxxxxxx>; Allan Klotz <allan.klotz@xxxxxxxxxxxxxxx>; chrysler 300 club <chrysler-300-club-international@xxxxxxxxxxxxxxxx>; James Douglas <jdd@xxxxxxxxxx>
Subject: Re: {Chrysler 300} Spark Plugs in 413.

Just a quick note, NGK Spark Plugs are made here in WV !

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On Dec 12, 2022, at 8:55 AM, Noel Hastalis <cpaviper@xxxxxxxxxxx> wrote:

Here are the NGK plugs I’ve been running in my 300-F -
Noel

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On Dec 12, 2022, at 6:34 AM, John Grady <jkg@xxxxxxxxxxxxxxxxx> wrote:
They have both , all good with a tiny very sharp non degradeable tip .
As far as fit just look up cross reference
Probably rock auto has .
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On Dec 12, 2022, at 2:29 AM, Allan Klotz <allan.klotz@xxxxxxxxxxxxxxx> wrote:

Hi

Is it NGK Ruthenium and if so are there a special product number that will fit the 413 engine?

Thanks
Allan

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx [mailto:chrysler-300-club-international@xxxxxxxxxxxxxxxx] On Behalf Of John Grady
Sent: 12. december 2022 02:18
To: James Douglas
Cc: Chrysler 300 List Server (chrysler-300-club-international@xxxxxxxxxxxxxxxx)
Subject: Re: {Chrysler 300} Spark Plugs in 413.

Best plugs by far today are NGK rhodium tips . Very wide heat range , last 100 k .+ on new cars . A little pricey but worth every cent
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On Dec 11, 2022, at 5:49 PM, 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Hello everyone,

I was wondering what people’s recommendation on spark plugs are for the 413? I have the charts and know what the books say. I can also tell you that on my 1940’s flatheads that they run better with plugs that deviate from the direct cross references.

In addition, I have found out that the plug recommendation for city stop and go versus road trip plugs can be different. Since I have not run a V8 in 20 or more years and with all the gas formulation changes, I wanted to ask the group what they have found works well with todays gas in the RB 413 Wedge head engines.

Thank you, James
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