What is the Spark plug gap 1991 Chevrolet Silverado 2500 350 V8?
The recommended spark plug gap for a 1991 Chevrolet Silverado 2500 with a 350 V8 engine is 0.045 inches (1.1 mm). However, always double-check your owner's manual as there might be slight variations depending on the specific engine configuration and the type of spark plugs used.