Moroso Chevrolet Big Block Ignition Wire Set - Ultra 40 - Unsleeved - HEI - Over Valve - Blue

These Moroso Ultra 40 ignition wire sets are built for Chevrolet big block engines using an HEI distributor and feature an over-the-valve routing design. The wire itself is a 7mm conductor with a resistance of 40 ohms per foot, which helps ensure a strong spark reaches your plugs. This particular set is unsleeved, meaning the wires are exposed, giving a clean, classic look under the hood.

The blue color adds a distinct visual touch to your engine bay. Moroso designed these wires to handle the demands of performance applications while maintaining a direct fit for the specified HEI distributor setups. The over-the-valve routing is a practical consideration for many big block Chevy engine bays, helping to keep the wires neatly organized and away from hot exhaust components.