Spark Plug Torque

Spark Plug Torque

Tighten 5.0L, 5.7L, 7.4L
- For new iron heads tighten the spark plugs to 30 Nm (22 lb ft) for 5.0L, 5.7L, 7.4L.
Tighten 5.0L, 5.7L
- For (IRON Head-all Subsequent Installations) tighten the spark plugs to 15 Nm (11 lb ft) for 5.0L, 5.7L.
Tighten 7.4L
- For (IRON Head-all Subsequent Installations) tighten the spark plugs to 20 Nm (15 lb ft) for 7.4L.