The 1964 Chevrolet Fullsize Engine Harness is your ultimate solution for enhancing your classic ride's performance and reliability. Designed specifically for 283 and 327 cubic inch engines, this harness is modified for seamless integration with GM's High Energy Ignition (H.E.I.) distributor. Say goodbye to unreliable electrical connections and embrace a smoother, more efficient driving experience with our quality wiring solution that outperforms traditional options.