The recommended spark plug gap for a Chrysler 318 CID V8 engine varies slightly depending on the year and specific application (e.g., whether it's a car, truck, or marine engine). However, a
gap of 0.035 inches (0.89 mm) is a very common and generally accepted range.
To be absolutely certain, always consult your owner's manual. The specifications will be listed there for your specific vehicle's engine.
