HP Copper Spark Plug - 8179 Medium Margin Also Fits 99-01 Ford F-350SD/450SD/550SD

Also Fits 99-01 Ford F-350SD/450SD/550SD

Engine: 350 CID (Does NOT fit LT1)

1971-1972 Dodge Charger

7L V8 and 6

# of Passes Single Brand Frostbite Cooling Row Diameter 11/16" Core Dimension 18" x 26" Core Thickness 2

HP Copper Spark Plug - 8179 Medium Margin Also Fits 99-01 Ford F-350SD/450SD/550SDOverview: 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