Upgrade your classic ride with our premium 1965 Chevrolet Fullsize Engine Harness specifically designed for 409 C.I. engines equipped with factory gauges. Crafted for durability and precision, this wiring harness offers seamless installation and reliable performance, ensuring your engine runs smoothly. Unlike generic options, our harness is engineered to meet or exceed OEM specifications, making it the perfect choice for restorations and repairs.