Upgrade your classic ride with the GM 1971 Chevrolet Fullsize Engine Harness. Specially designed for small block engines and T.H. 400 automatic transmissions, this high-quality wiring harness ensures reliable performance and seamless compatibility with GM H.E.I. distributors. Unlike generic alternatives, our harness delivers superior durability and an easy installation process, making it the go-to solution for restoring or enhancing your vintage vehicle.