Autolite High Perfomance Racing Copper Resistor Spark Plug

Racing/high Performance Spark Plug Special Low Clearance Version Of Base Spark Plug Designed For Applications With Domed Pistons Or Very Little Clearance Available In The Combustion Chamber Cut Back Ground Electrode For Better Ignitability Of The Flame Kernel Anti-Corrosive Nickel Plating For More Corrosion Resistance Large Ground Electrode For Better Heat Transfer