These triple-silicone 1957-1974 Corvette Spark Plug Wire Sets harness and deliver maximum voltage your Corvette's ignition system emits without annoying radio interference. Features a high temp, conductive silicone core, wrapped in non-metallic Kevlar®, then insulated with another layer of silicone and jacketed by Packard coating. These wires are for car with points in the distributor.