Edelbrock Coil 22782 is a single coil - on - plug coil designed as a direct performance replacement for the OEM coil on 2004 - 08 Ford 4.6L - 5.4L V8 engines. Each 22782 coil features advanced technology with heavy - duty primary and secondary windings inside of a corrosion - resistant housing. The enhanced windings in these coils offer higher energy and voltage output for greater spark and can help to provide quicker starts with improved idle quality. Coil housings are resistant to heat, shock, vibration and corrosion. This coil is available in a set of eight under 22783.