The ground electrode is cut-back from the center electrode to provide a gap, and its concave face ensures a constant gap to the center electrode. This design opens the spark face for better ignitability of the flame kernel and retains less heat, transferring it to the shell faster to reduce the risk of pre-ignition. Dyno testing has shown proven power gains, making it ideal for all aftermarket cylinder heads used in various racing venues, including oval and road racing. The cut-back ground electrode is an evolution from the practice of grinding back the side electrode, and it features a gasket seat type for optimal performance.

Product Features:

• Opens spark face for better ignitability of flame kernel
• Retains less heat, transfers heat to shell faster - reduces risk of pre-ignition
• Dyno testing has shown proven power gains
• Cut-back ground electrode evolved from practice of grinding back the side electrode
• Optimal Performance: Features a gasket seat type for optimal performance in aftermarket cylinder heads used in oval and road racing.
• Durable Design: Specifically designed to handle intense racing conditions, ensuring reliable performance under extreme stress.