Spark Plug: Specifications

Torque Specification
- For used heads tighten the spark plugs to 15 Nm (11 lb ft).
- For new aluminum heads tighten the spark plugs to 20 Nm (15 lb ft).
- For new iron heads, tighten the spark plugs to 30 Nm (22 lb ft).

Gap Specification
- 1.01 mm (0.040 inch)