Mustang V8-4.6L VIN H (2005)
Spark Plug: Electrical Specifications
4.0L V6
CID ................................................................................................................................................................................................................................... 245
Spark Plug Gap .......................................................................................................................................................................................... 0.052-0.054 inch.
4.6L V8
CID ................................................................................................................................................................................................................................... 281
Spark Plug Gap ............................................................................................................................................................. 0.040-0.050 inch. (non-adjustable)