Spark plug wire heat shield. Fits most hot rods and classic engines, compatible with GM Chevy, GMC, Cadillac, Buick, Ford, Chrysler, Dodge.
These spark plug boot protectors are made from a fiberglass material and treated to withstand extreme under-hood temperatures up to 1200 degrees.
designed to be able to lie directly on hot headers and other engine components without burning, melting, or becoming brittle.