4.2 spark plugs

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Nov 21, 2011 | 02:16 AM

fleetnuts

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Senior Member

Joined: Nov 2011

Posts: 208

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4.2 spark plugs

Hey guys, wanted to know what performance spark plugs you guys would recommended for the 4.2?

Nov 21, 2011 | 02:42 AM

bobkyle2

Meaner than Ymeski

Joined: Oct 2009

Posts: 23,811

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I use the Motorcraft Part Number: SP-504 in my 08

And the Denso iridiums in my 02 f150

Both have the 4.2

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