Operation CHARM: Car repair manuals for everyone.

Spark Plug Gap


Spark plug gap 4.6L 0.052-0.056 inch (1.32-1.42mm)
Spark plug gap 4.6L 3v v8 0.039-0.043 inch (1.0-1.1mm)
Spark plug gap 5.4L v8 0.039-0.043 inch (1.0-1.1)