Moroso 9861M Mag-Tune Spark Plug Wire Set Big Block Chevy 7.4L Non-HEI Crab Cap 90 Degree

The Moroso 9861M Mag-Tune spark plug wire set is a premium ignition wire system designed specifically for Big Block Chevy 7.4L engines with non-HEI crab cap distributors. These high-performance wires are manufactured in Moroso's Philadelphia facility and engineered to deliver superior ignition performance for racing and high-performance street applications.

Advanced Construction:

• Spiral-wound stainless nickel alloy conductor wound 32 times per inch around a conductive latex-coated, heavy-duty fiberglass core
• Dual-layer EPDM (ethylene propylene diene monomer) jacketing provides exceptional heat protection and superior dielectric strength
• Fiberglass reinforcing braid between jacket layers adds pull strength and durability
• Operates at one-tenth the resistance of conventional carbon core conductors while exceeding OEM radio frequency interference (RFI) requirements

Performance Features:

• 90-degree spark plug boots for under-header routing applications
• Moisture-resistant 100% silicone boots ensure reliable performance in harsh conditions
• Snap-lock spark plug terminals provide secure connections
• Socket-style distributor terminals compatible with non-HEI crab cap distributors
• Black wire finish for a clean, professional appearance
• Fully tested for secure termination, electrical conductivity, and dielectric strength

This complete wire set is designed for budget-minded racers who demand professional-grade performance without compromise. Each wire is pre-assembled and ready for installation on Big Block Chevy engines equipped with non-HEI ignition systems.