Missing heat shields are the number one reason for burnt spark plug wires. Protect your Corvette with this 1963-1969 Lower V Spark Plug Heat Shield! This shield is designed to protect your stock or aftermarket spark plug wires from excessive exhaust manifold heat. Often times, these shields can be removed during routine engine tune-ups to gain access to ignition components and are commonly missing entirely from a restoration. This direct replacement shield is designed for long lasting good looks and functionality.