MSD 31299 Race Tailored 8.5mm Super Conductor Spark Plug Wire Set, BBC w/ Low Profile Distributor


  • Big Block Chevy
  • For race engines equipped with headers or an MSD Distributor
  • 90°boot for low profile HEI cap
  • The ultimate performance wires
SKU: MSD31299 Categories: ,

The MSD 8.5mm Super Conductor is the ultimate performance wire! Its extremely low-resistance combined with the ability to suppress Electro Magnetic Interference is a combination that defies the common laws of physics.

Less resistance means more energy is going to make it to the spark plug to ignite the air/fuel mixture. The Super Conductor uses a copper alloy conductor resulting in less than 50 ohms per foot of wire! This ensures that the most energy possible makes it to the spark plug. By helically winding the conductor around a special core, we are able to produce a highly effective choke to keep the EMI inside the wire and away from other electronics.

This combination is encased in a heavy duty sleeve that will withstand abrasion and high temperatures. Cap off each end with our Dual Crimp Terminals and you have the best wire available.


  • Less than 50 ohms per foot for superior spark
  • Ferro-magnetic impregnated core creates an effective EMI choke
  • Forty feet of conductor is wound into a single foot of wire for high EMI suppression
  • Conductor core features Dupont Kevlar material for increased tensile strength
  • Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
Weight 2.05 lbs
Dimensions 11 × 2.8 × 9.9 in



Manufacturer Part Number


MSD Race Tailored 8.5mm Super Conductor Spark Plug Wires

Big Block Chevy with Low Profile Distributor

For race engines equipped with headers or an MSD Distributor.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to