Accel 140033-8 Ignition Super Coil Kit for 04-08 4.6L, 5.4L 3-Valve Ford Engines. ACCEL Super Coils are engineered for a faster rise time and a longer spark duration. They produce higher spark energy for increased performance. These coils are available for a wide variety of specific engine applications. Order the set designed for your make and model. Fits the early 3-valve engines with 16mm spark plug threads. Replaces coils with a 4 in. Long black boot and marked with 3L3E on top of the stock coil. Being the leader in performance ignition systems and components, Accel ...