Accel® (04-08) Ford 3V HP Copper Core Spark Plugs

Compatible: (4.6L/5.4L) 2004 - 2008 Ford F-150  2004 - 2008 Ford Mustang GT 2007 - 2008 Ford Mustang GT500 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 high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention. Features: For use with Brown Coil Boot, OE Coil 3L3E or ACCEL 140033E or 140033E-8 Copper Core - Copper is a better conductor than Iridium or Platinum plugs Heat Dissipation - Copper dissipates Heat Much better than other materials "C" - Cut Design - un-shrouding the spark kernel Gapab