Re: {Chrysler 300} 300-F Spark Plug Wires

[John Grady <jkg@xxxxxxxxxxxxxxxxx>]

Just observing, a spark will still  jump across a poorly made small gap in a crimped on wire terminal, in general, --and you should get it corrected. Check end to end with ohmmeter, under 40 K or so is ok, but even if it's open, the gap has to be 1/4" or more, (unlikely) , in order to cause a complete failure.  (obviously not saying ok, just that it will still work) . So, it sounds like a different problem than the wire if not firing. Most likely , wet plug .

JKG 

On Wed, Apr 22, 2026 at 5:27 PM 'dave mason' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Jim,

Your #5 and #7 are the longest, more or less special to cross ram, but if those two are good, a set of regular 413/440 wires from Napa should work for the other 6 wires, for tempsies.   I believe Danny has had good luck with the correct wires that he bought and can probably comment.   AMS obsolete/ Mopar Mall also sells them and we got a set from them once but as has been discussed recently, they are somewhat pricey on their items…

D&K

Sent from my iPhone

On Apr 22, 2026, at 17:05, Jim Birr <jebirr@xxxxxxxxx> wrote:

Trying to get my 300-F running for first time after re-build.  Having issues with Lectric plug wires.  Not getting timing light to fire on #1 or #6.  Then found #1 end came off at plug - didn't seem to be terminated well.  Wondering if #6 is same problem.  Actually think my restoration shop may have been hard on them but thats another story.

So... has anyone bought a set of wires elsewhere that fit the ram cars?  Rock Auto lists a bunch but concerned they not be correct lengths for ram car.  Wanted to throw another set on to get engine running /dialed in and then try to fix/or get new set of LEctric wires.

Thanks.

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