The CNM Ignition PowerStrike HEI Coil is the ideal performance upgrade for any vehicle running an HEI‑style electronic distributor. Designed to meet the demands of today’s high‑performance engines, this coil features an optimized winding design that increases spark-gap current and maximizes available voltage. The result is quicker throttle response, improved combustion efficiency, and stronger performance at elevated RPMs.

Producing up to 65,000 volts, this high‑output coil delivers the powerful spark needed for modified engines, high‑RPM setups, or performance driving. Its ultra‑low primary resistance allows higher current flow, enhancing ignition accuracy and energy output where it matters most.

Built to OEM specifications, the PowerStrike HEI Coil installs easily in place of factory units and works seamlessly with stock or aftermarket systems. It is engineered for reliable spark delivery under demanding conditions—whether you’re racing, towing, or simply looking for enhanced day‑to‑day drivability.

For the ultimate ignition upgrade, pair the PowerStrike Coil with CNM Ignition’s HEI module, which together provide up to 100% more spark energy compared to OEM components.

 

• High Output 65,000 Volt Performance – Delivers a stronger, more efficient spark for improved throttle response, quicker starts, and more power at higher RPMs.
• Optimized Winding Design – Engineered to increase spark-gap current and available voltage, maximizing engine performance in both stock and modified applications.
• Ultra Low Primary Resistance – Enhances current flow for more accurate ignition timing and higher energy output, ideal for high RPM or high load conditions.
• OEM Compatible Upgrade – Direct bolt in replacement for factory style HEI coils; accepts OEM connectors for fast, high quality, hassle free installation.
• Durable Construction – Built the same strict OEM specifications for long lasting reliability in racing, towing, or everyday driving while increasing the winding ratio for more power.
• Pair With CNM HEI Module for Maximum Output – When used with CNM Ignition’s HEI module, the system produces up to 100% more energy across the spark plug gap during a one millisecond burn time compared to OEM coils.