NGK (6703) BPMR7A SOLID Standard Spark Plug, Pack of 4

The NGK 6703 is a solid-shank, bimetal spark plug designed for use in the automotive industry. It’s ideal for high performance engines and can be used with or without anti-fouling plugs. The 6703 has a projecting tip that allows it to reach into the combustion chamber even when there is no gap between the head and cylinder wall. A special heat range was developed to provide optimum ignition timing over a wide rpm range while maintaining stable idle characteristics