HP Copper Spark Plug - Shorty - 0416S-4 caps-rotors-and-contacts The kit includes all necessary

The kit includes all necessary hardware and instructions for an easy installation you can do at home

Application 68-69 Ford Ranchero

2007 GMC Sierra 2500 HD Classic

7L V8 1978 - 1981 Mercury Grand Marquis 351/5

Muffler Series: HP-2 Series

HP Copper Spark Plug - Shorty - 0416S-4 caps-rotors-and-contacts The kit includes all necessaryOverview: ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3 16 in to 3 8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain