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Spark Plugs

SPARK PLUG SPECIFICATIONS

Application	Specification
	Metric	English
Spark Plug Gap
3.8L	1.52 mm	0.060 in
5.3L	1.02 mm	0.040 in
Spark Plug Torque	15 N.m	11 lb ft
Spark Plug Type
3.8L	GM P/N 12568387
5.3L	GM P/N 12571164 AC Spark Plug P/N 41-985
Spark Plug Wire Resistance
3.8L	3000 ohms per ft
5.3L	3188-312 ohms