American Motorhome RV Chevy V8 7.4 L 454 CID V8 Spark Plug asp26

A standard copper-core spark plug that delivers the electrical spark to ignite the fuel/air mixture in the combustion chamber. The copper core center electrode improves thermal control and resistance to fouling, with a high-nickel-alloy electrode tip for extended life and a nickel-plated shell for corrosion resistance. Electrode type: Copper core, standard nickel alloy tip Insulator: High alumina, multi-rib ceramic (thermal conductivity, prevents flash-over) Shell: Nickel-plated, corrosion resistant