Spark PLugs

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Mar 22, 2009 | 09:52 PM

coonhound130

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Joined: Mar 2009

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Spark PLugs

What are the best Spark Plugs to use in the 2001 F-150 4.2 Ext Cab with 5 speed ?
Brand , type and gap ?
Also brand Coil pack ? AcDelco or Motorcraft ?

Mar 22, 2009 | 10:44 PM

dirtyd88

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Joined: Mar 2008

Posts: 4,190

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From: Burleson, TX

Go with Motorcraft. Our trucks don't like anything but.

Mar 22, 2009 | 10:51 PM

glc

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Joined: Dec 2006

Posts: 43,539

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From: Joplin MO

www.rockauto.com

Plugs - Motorcraft SP504 - $3.53 each
Wires - Motorcraft WR6110 - $47.79/set
Coil pack - Motorcraft DG532 - $77.79

Tube of dielectric grease from any parts store.

Mar 22, 2009 | 10:51 PM

Raptor05121

Technical Article Contributor

Joined: Jan 2007

Posts: 10,610

Likes: 7

From: Live Oak, FL

The 4.2L doesn't like anything but the OE standard SP504 Motorcraft Platniums. Gapped to 0.054". I bought mine at AutoZone for $4.99/ea. Dunno about the other stuff yet, havent replaced those just yet.

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