7mm Spark Plug Set Univ. British 4-Cylinder Black

The PERTRONIX IGNITION 7mm Spark Plug Set Universal British 4-Cylinder Black is designed for vintage and classic British automotive builds, ensuring reliable ignition performance. This spark plug set is essential for achieving consistent spark delivery in both air-cooled and water-cooled British four-cylinder engines, including popular models like MGB, Triumph, and Austin-Healey.

Upgrading to high-quality spark plugs is a cost-effective modification that enhances cold starts, throttle response, and fuel efficiency while minimizing fouling and misfires. PERTRONIX IGNITION leverages decades of expertise in ignition system optimization, reflected in the precision electrode geometry and consistent thermal range across all cylinders. The black finish is designed to resist corrosion and oxidation in high-heat engine environments.

Restorers and performance enthusiasts will find this spark plug set invaluable, especially when paired with electronic conversion kits like PERTRONIX's Ignitor module. Each plug in the set is matched for resistance and firing characteristics, ensuring even combustion and optimal performance without the complications of mixing old and new plugs or incorrect heat ranges.