- GM HEI performance upgrade kit
- Matched coil and module
- High output 8.5 amp module
- Improved high rpm spark performance
- Complete rebuild solution
- Brass terminal cap included
- Performance ignition enhancement
The MSD Ultimate HEI Kit provides a matched set of ignition components to enhance the performance of early GM HEI distributors. The included high-output module and coil are engineered to work together for improved voltage and energy delivery.
This complete kit simplifies rebuilding and upgrading HEI systems for better high-rpm operation and overall ignition performance.