Upgrade your classic ride with the GM 1955-1957 Chevrolet Fullsize Engine Wire Harness and Lead Wires. Designed specifically for manual transmissions with single carburetors, this harness ensures optimal performance and reliability. Unlike generic alternatives, our high-quality wiring solution meets OEM specifications, ensuring perfect compatibility and long-lasting durability. Elevate your restoration project and keep your Chevy running smoothly with this trusted product!