ACCEL 578-6 Ford Lincoln 2.0 2.3 3.5 Spark Plug

ACCEL HP Spark Plugs are made w/a Copper core which is a better conductor than Platinum & 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 high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement & torque retention.