Spark plug gap on a 5.7 v8 Chevy motor?

The recommended spark plug gap for a 5.7L Vortec V8 Chevy engine depends on the year of the vehicle and the specific spark plugs used. There's no single answer.

You MUST consult your owner's manual or a reliable repair manual specific to your vehicle's year and model. The gap will be specified there. Trying to find the information online without knowing the exact year and potentially the specific engine code could lead to incorrect gapping and poor engine performance or even damage.