FAST FireWire Chevrolet Big Block Under-Header Cover Wire Set

When you're building a high-performance Chevrolet Big Block, getting the spark energy to the plugs reliably is key. This FAST FireWire spark plug wire set is designed to handle the demands of a powerful ignition system, especially in tight engine bays where heat and interference are common. It's built to ensure that the voltage generated by your ignition control makes it cleanly to the spark plug gap for a strong, consistent spark.

What sets these wires apart is their unique reactive core design. This advanced feature actively suppresses electromagnetic interference (EMI), which can cause problems for your ignition control, EFI system, and other electronics. From a performance standpoint, the conductor in these FireWires has a very low resistance, less than 25 ohms per foot. This means less energy is lost along the wire, so more spark energy reaches the plug. To protect against the harsh conditions under the hood, like header heat, oil, and abrasion, the core and conductor are wrapped in a double-layered pure silicone sleeve. The silicone boots are rated to withstand temperatures up to 550°F, making them well-suited for engines with headers close to the wires.

This set includes eight wires with 90-degree spark plug terminals and an HEI distributor terminal, designed to fit a range of Chevrolet vehicles from the 1960s and 70s, including models like the Impala, Camaro, and C10 Pickup. It's a solid option for anyone looking to ensure their ignition system is performing at its best.