MSD Super Conductor Spiral Core 8.5 mm Spark Plug Wire Set - Red - Straight Plug Boots - Socket Style - GM LS-Series 32829 Ignition Box Crossover Switch Duration 286 / 286

Duration 286 / 286

rocker stud diameter: 3/8"

1967-1993 Mercury Cougar

Mounting is through tubes welded directly to the valve covers to help maintain gasket-rail flatness and to prevent leaks

ports for cooling lines

MSD Super Conductor Spiral Core 8.5 mm Spark Plug Wire Set - Red - Straight Plug Boots - Socket Style - GM LS-Series 32829 Ignition Box Crossover Switch Duration 286 / 286The MSD 8. 5mm Super Conductor Wire is "the" performance wire. Engineered from the inside out, the 8. 5 offers everything you have everwanted in a wire; incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying