The list for the 4.7 is the AP5224 in the book.
----- Original Message -----
From: "Bernd D. Ratsch" <bernd@texas.net>
To: <dakota-truck@buffnet.net>
Sent: Sunday, October 21, 2001 6:07 PM
Subject: DML: RE: 5224 VS 3923 plugs
>
> Minor correction:
>
> The 5224's are for the V6. On the electrode, the 5224 is a "Special
> Power Tip" plug and the 3924/3923/3922 is a "Standard Tip". The
> extended tip (5224) are prone to pinging.
>
> Just because the tip design is different, doesn't mean the plug won't
> work or is the wrong one.
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@buffnet.net
> [mailto:owner-dakota-truck@buffnet.net] On Behalf Of kwreimer
> Sent: Sunday, October 21, 2001 5:01 PM
> To: dakota-truck@buffnet.net
> Subject: DML: 5224 VS 3923 plugs
>
>
> Ok I visited my friends at the parts store today and compared the 3923
> to the 5224 autolites. the 3923 are for the V-6 not the 4.7. the list
> shows 3924 actually for the V-6. so you men are running a colder plug.
> But the important point i found comparing them is that the 3923 threaded
> portion is slightly shorter in length than the 5224, Meaning if i was to
> install the 3923 in my 4.7 the plug is actually up inside the plug hole,
> THUS causing the electrode to not be further down where it should be.
> Would this not cause a problem in the way fuel air is ignited.? I dont
> want arguments here, I just want to say I disagree in using a plug in a
> motor in which it is not engineered for. The correct plug for the 4.7 is
> the AP5224. A=AUTOLITE, P=PLATINUM.
>
>
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