MSD Super Conductor 8.5 MM Big Block Chevy Wire Set
All Big Block Chevy marine engines with HEI male style distributorcaps.
Super Conductor 8.5 MM Spark Plug Wire has extremely low resistance and high RFI (radio frequency interference) suppression; a combination which would seem to defy the laws of physics. The low resistance is achieved through use of a helically wrapped, copper alloy conductor which is then wrapped around a ferro-magnetic impregnated center core.