MSD 31293 Black 8.5mm Super Conductor Spark Plug Wire Set Big Block Chevy

The MSD 31293 is a Race Tailored 8.5mm Super Conductor Spark Plug Wire Set engineered specifically for Big Block Chevy engines equipped with a low profile distributor. Designed for performance builds running headers, these wires deliver maximum ignition energy to the plugs while keeping electromagnetic interference completely in check.

At the heart of the Super Conductor design is a copper alloy helical winding that achieves less than 50 ohms of resistance per foot — the lowest resistance of any helically wound wire available. Over 40 feet of conductor are wound into every single foot of finished wire, enabling RFI suppression equivalent to a 1,500-ohm wire without the energy loss that traditional high-resistance suppression wires suffer.

Key Features:

• Ultra-low resistance: Less than 50 ohms per foot for maximum spark energy delivery
• Ferro-magnetic impregnated center core combined with helical winding creates a highly effective EMI/RFI choke
• 40+ feet of copper conductor wound per foot of wire for superior conductivity and suppression
• DuPont Kevlar-reinforced conductor core for exceptional tensile strength and durability
• 8.5mm synthetic/silicone outer jacket over an extra-heavy glass braid and dielectric insulator for high-heat and abrasion resistance
• Dual Crimp stainless steel terminals with snap-locks beneath high-temperature boots for a secure, reliable connection
• 90-degree spark plug boots with HEI-style distributor terminals — ideal for header-equipped engines
• Includes clip-on cylinder number markers for easy identification during installation

The MSD 31293 Super Conductor wire set is the definitive choice for serious Big Block Chevy performance builds where ignition reliability and EMI control are critical. Black jacket with gray boots.