Maintenance / 1997 FFS MPFI · 5.7 L · automatic 4-speed

Spark plugs

Use the engine-specific plug type. Check the service schedule and inspect ignition faults before replacing parts.

IntervalReplace spark plugs and inspect spark-plug wires at 100,000 mi (166,000 km).Verified

01 / Requirements

Configuration-specific service and fitment facts

These sourced values are shared by the specification sheet and the maintenance guides for this exact configuration.

Cylinders
8 Verified
Spark plug specification
ACDelco 41-931 or equivalent Verified
Spark plug gap
0.06 in Verified
Installation
Work on a cooled engine using the specified tightening procedure. Do not adjust a fine-wire plug gap unless its manufacturer explicitly permits it.