Upgrade your classic ride with the premium 1959 Chevrolet Fullsize Engine Harness designed specifically for 348 C.I. engines (except solid lifter Special High Perf. option). This top-tier wiring harness is engineered for optimal performance and reliability, ensuring that your vintage vehicle runs smoothly and efficiently. Say goodbye to faulty wiring and hello to a seamless electrical system that outperforms standard alternatives. With an internal resistance wire included, you benefit from reduced issues related to overheating and electrical failures.