I am running regular ol' 3923's in my 4.7 QC and have noticed a difference.
Not a big difference, but more of an improvement than the stockers.
Tanner
----- Original Message -----
From: "Daniel Card" <dccard1@pacbell.net>
To: "DML" <dakota-truck@buffnet.net>
Sent: Friday, November 03, 2000 6:20 PM
Subject: DML: I think I'm confused on spark plugs
> I know this should be an easy concept. But I think I'm confused on the
spark plugs.
>
> I know the 4.7L V8 has a different ignition system on it, which is why you
can't install an aftermarket ignition system. Now what I thought the case
was, is that you have to use platinum plugs on the 4.7L because of the low
voltage ignition system and you use copper plugs on the traditional ignition
systems. You can't use plat plugs on aftermarket ignitions (like MSD),
which is why everyone is using the regular 3923's. And I thought you can't
use copper plugs on the 4.7L because it has a low voltage ignition.
>
> Is this right, or where am I screwed up? Now if I am right that plat
plugs must be used on the 4.7L, then does that mean you're supposed to use a
plat plug that has both a plat firing tip and electrode (as in the APP3923)?
Or it just has to have a plat tip (as in the AP3923)?
>
> thanks for bearing with me on this one guys.
>
> Dan Card
> 00 QC SLT 4x4, 4.7L, 3.92 LSD, Flowmaster dual straight pipes, Z-Tube w/9"
Big Mouth
>
>
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