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What is the spark gap for a Chevy Tahoe 1999 4x4 5.7 vertex engine?

The recommended spark plug gap for a 1999 Chevy Tahoe 5.7L Vortec engine is 0.040 inches (1.0 mm). However, always double-check your owner's manual for the most accurate and up-to-date information. The manual will specify the exact gap recommended by the manufacturer for your specific vehicle and engine.