HP Copper Spark Plug - Shorty - 0416S-4 caps-rotors-and-contacts 7L V8 1978 - 1981

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

8 V8 2003 - 2013 GMC Sierra 1500 SL 325/5

2L V8 1981 - 1983 Plymouth PB350   318/5

Front Brake Line Kit For 69 Chevy Camaro Standard Drum Brakes Front 4 Line Kit Stainless

The billet 6061-T6 body has been machined for SAE6 ports and has three 6AN fittings and one extra plug included

HP Copper Spark Plug - Shorty - 0416S-4 caps-rotors-and-contacts 7L V8 1978 - 1981Overview: 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