MSD 30479 Super Conductor 8.5mm Spark Plug Wire Set SB Chevy for Crab Cap 8541

The MSD 30479 is a race-tailored 8.5mm Super Conductor spark plug wire set engineered for Small Block Chevy engines running an MSD Distributor with the MSD Crab Cap (PN 8541). Designed specifically for race engines equipped with headers, these wires route below the exhaust manifolds for a clean, performance-ready installation. Distributor boots feature a 90-degree short HEI male post connection, while the plug boots are also 90-degree for optimal routing.

Key Features:

• Ultra-low resistance: Less than 50 ohms per foot — the lowest resistance of any helically wound wire — ensuring maximum spark energy reaches the plug
• Superior EMI suppression: Over 40 feet of copper alloy conductor is tightly wound into every single foot of wire, combined with a ferro-magnetic impregnated center core to create an extremely effective EMI choke that keeps interference inside the wire and away from sensitive electronics
• DuPont Kevlar reinforced core: Conductor core incorporates DuPont Kevlar material for exceptional tensile strength and durability
• Heavy-duty outer sleeve: Proprietary synthetic/silicone compound jacket provides high resistance to heat, abrasion, and tears
• Dual crimp stainless steel terminals: Feature snap-lock design under high-temperature boots for a secure, reliable connection
• 8.5mm diameter with extra-heavy glass braid and dielectric insulator layer
• Includes clip-on cylinder number markers for easy wire identification
• Compatible with MSD Distributors PN 8489 and PN 84891 using Crab Cap PN 8541

The MSD 30479 Super Conductor wire set delivers the rare combination of extremely low resistance and outstanding EMI suppression — qualities that are typically at odds with each other in conventional plug wire designs. Sold as a complete set.