Spark Plug Gap
SPARK PLUG TORQUESSpark Plugs - 3.7L 27 Nm (20 ft. lbs.)
Spark Plugs - All 4.7L (Upper or Lower row) (New plugs/gaskets) 27±3 Nm (20 ft. lbs.)
Spark Plugs - All 4.7L (Upper or Lower row) (Used plugs/gaskets) 22±3 Nm (16 ft. lbs.)
**Spark Plugs - 5.7L 18(±3) Nm (13(±2) ft. lbs.)
** Torque critical tapered design. Do not exceed 15 ft.lbs.