Upgrade your classic Plymouth's ignition system with our 1968 Spark Plug Wire Sets, specifically designed for Valiant, Duster, Scamp, and Signet models. These high-performance spark plug wires provide unmatched durability and performance, ensuring maximum firepower for your 383 & 440 C.I. engines. Unlike off-the-shelf alternatives, our wires are crafted to replicate the original specifications, delivering reliable performance while maintaining the authenticity of your classic ride.