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What is the proper spark plug gap for a 1995 GMC suburban with 5.7 liter V8 engine?

The recommended spark plug gap for a 1995 GMC Suburban with a 5.7L V8 engine is 0.040 inches (1.0 mm). However, always double-check your owner's manual for the most accurate information. The manual will provide the specifics for your exact vehicle and engine configuration.