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What is the spark plug gap for a 1986 GM 5 liter engine?

The recommended spark plug gap for a 1986 GM 5.0L (305 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's year and model as there might be slight variations depending on the exact engine configuration and specifications.