Upgrade your classic ride with the GM 1970 Chevrolet Fullsize Engine Wiring Harness, designed for 6-cylinder engines with manual transmissions. This high-quality wiring harness replaces outdated connectors and provides a reliable electrical connection throughout your vehicle. Engineered for performance and durability, this harness ensures optimal efficiency and safer operation, making it the best choice for enthusiasts who want to maintain their vehicle’s original functionality without compromise.