HP Copper Spark Plug - 0736-4 exhaust-system-parts 5 V8 1970 Chevrolet Nova

5 V8 1970 Chevrolet Nova 402/6

which is ideal when towing so you don't blow exhaust fumes on your boat

5 V8 1976 - 1996 Ford E-350 Econoline 460/7

5 V8 1976 Pontiac Catalina Base 455/7

HP Copper Spark Plug - 0736-4 exhaust-system-parts 5 V8 1970 Chevrolet NovaOverview: ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for