Upgrade your classic ride with the 1971 Chevrolet Fullsize Engine Harness, specifically designed to cater to big block engines equipped with H.E.I. (High Energy Ignition) distributors. This high-quality harness ensures optimal electrical performance for your vehicle's engine, providing reliability and consistent power delivery. With easy installation and superior durability, it stands out from the competition, enhancing your car's efficiency and longevity.