Upgrade your classic 1961 Chevrolet Fullsize with our top-of-the-line Engine Harness, designed specifically for 348 & 409 cubic inch engines equipped with H.E.I. (High Energy Ignition) distributors. This wire harness ensures enhanced performance, reliability, and ease of installation, setting a new standard for aftermarket electrical components. Don't settle for outdated options; choose our harness for a cleaner, safer, and high-performance solution.