HEI 90 Degree Boots 2 Per Card

The HEI 90 Degree Boots 2 Per Card by MSD IGNITION are precision-engineered spark plug wire terminals designed for high-performance ignition systems, particularly those running HEI (High Energy Ignition) configurations. These boots serve as replacement parts that protect the connection point where spark plug wires terminate at the distributor cap, preventing electrical arcing, moisture intrusion, and carbon tracking that can degrade ignition performance.

Constructed from durable silicone, these boots resist ozone, UV degradation, and high underhood temperatures, maintaining electrical integrity through thousands of ignition cycles. The 90-degree design routes spark plug wires at a perpendicular angle to the distributor cap, allowing for tighter engine bay packaging and reducing stress on wire connections in compact installations. This design also prevents wire kinking and reduces mechanical strain on solder joints or crimp connections, extending both boot and wire lifespan.

Mechanics and engine builders working on small-block and big-block builds—whether Chevy, Ford, or Mopar platforms running HEI distributors—will find these boots beneficial for upgrading or restoring classic engines with modern HEI technology. This two-pack solution provides complete coverage for dual-output or redundant ignition circuits without adding bulk or weight.