Ultra 40 Plug Wire Set BBC HEI - Blue

The MOROSO Ultra 40 Plug Wire Set BBC HEI in blue is designed specifically for big-block Chevrolet engines equipped with HEI (High Energy Ignition) distributors. This product is ideal for serious engine builders and weekend enthusiasts who demand reliability and performance in their ignition systems. Whether you're tuning a race-prepped BBC or restoring a classic muscle car, this plug wire set is a crucial upgrade.

Engineered with low-resistance copper core conductors, the Ultra 40 minimizes voltage loss and resists electromagnetic interference (EMI), ensuring consistent spark delivery across all eight cylinders. The heavy-duty silicone jackets are designed to withstand extreme underhood temperatures, which is essential in BBC applications where heat from exhaust headers can compromise weaker insulation. Additionally, the spiral-wound shielding and quality terminal connections help reduce cross-fire and misfires.

Mechanics and engine builders will appreciate the direct fit compatibility of the Ultra 40 set with big-block Chevrolet engines. Each wire is precisely cut and terminated to factory specifications, making installation straightforward and ensuring proper routing without pinches or shorts. The blue wire color also allows for easy visual identification during engine work, enhancing the overall user experience.