Re: Re: Spark plug change in a 4.7L

From: TerribleTom (silvereightynine@aol.com)
Date: Wed Sep 15 2010 - 21:28:26 EDT


Mike Sykes wrote:
>>> I'm planning on throwing autolite 3922s in there - the stock heat range
> copper plug.<<
>
> That's the 4.7H.O... I can't remember off the top of my head if they take
> platinum plugs or not. If that's the case, the autolites will make it run
> like crap. Just something to think about before yankin' any parts =)
>
> - miggity
> 00' R/T CC... mods, I has them.
>
>

Yes it is the HO 4.7L... and its pretty quick too, lives up to the HO
designation.

According to my parts computers at work coppers are designated as OE
plugs, and I remember from talk here on the DML, that the 4.7s do not
take well to platinum or other pricey metal plugs... hence the reason I
went with copper. You say the autolites are going to run like crap?
I've run autolite coppers in every dodge I ever owned, 318, 360, 3.9,
neon 2.0 - - all ran fine. I have autolite double plat. in my mothers
explorer (hers calls for that kind of plug) and no problems with
autolites ever.

Anyone think I should go with another brand?

--TerribleTom



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