Coil Wire - Blk 18in HEI/Socket

The Coil Wire - Black 18in HEI/Socket from QUICKCAR RACING PRODUCTS is an essential ignition component designed for high-performance engine builds and racing applications. Built for mechanics and enthusiasts who demand reliable spark delivery under extreme conditions, this 18-inch coil wire bridges the gap between your HEI distributor and ignition coil with precision engineering. Whether you're tuning a street machine or preparing a competition engine, this coil wire ensures consistent spark timing across all RPM ranges and throttle conditions.

This coil wire features a heavy-duty construction optimized for HEI (High Energy Ignition) distributor systems and standard socket connections. The 18-inch length accommodates flexible routing around engine bay obstacles while maintaining signal integrity—critical for preventing electromagnetic interference that can cause misfire and performance loss. The black insulation resists heat degradation in high-temperature engine compartments, while the shielded design protects against spark scatter and maintains voltage stability under load. Weighing just 0.33 lbs, it adds minimal mass without compromising durability or electrical performance.

This wire suits anyone upgrading from worn factory ignition harnesses or rebuilding classic engines with modern HEI conversions. Installation is straightforward: simply connect the socket end to your coil pack and seat the terminal firmly onto the distributor cap tower. It's ideal for street rods, muscle cars, dirt track competitors, and any small-block or big-block platform running aftermarket ignition systems. Replace your coil wire every 2–3 years or 50,000 miles to maintain peak spark quality, especially in high-heat or high-vibration environments.