Moroso Ultra 40 ignition wire set for Chevrolet big‑block engines with HEI distributors. This unsleeved, under‑header black kit is intended for routing beneath exhaust headers while maintaining HEI compatibility, supplying lengths and terminal styles matched to big‑block Chevy arrangements. It provides a direct replacement for installers needing under‑header routing without added sleeving.
Moroso Chevrolet Big Block Ignition Wire Set - Ultra 40 - Unsleeved - HEI - Under Header - Black