Engine Works GM HEI Ignition Coils

Engine Works GM HEI ignition coils deliver higher voltage for a hotter, more consistent spark, significantly improving engine performance, idle quality, and throttle response. Designed for efficiency, they allow for larger spark plug gaps to enhance combustion, while the integrated, often high-output design reduces maintenance and eliminates the need for external coils. These ignition coils are ideal for performance applications, including high-compression engines, where a stronger spark is necessary for optimal firing.