What is the spark plug gap for a 1977 Oldsmobile 403 cubic inch engine?
The recommended spark plug gap for a 1977 Oldsmobile 403 cubic inch engine is 0.045 inches (1.14 mm). However, always double-check your owner's manual or a reputable repair manual specific to your vehicle for the most accurate information. Slight variations may exist depending on the specific application and the type of spark plugs used.