Engineered from the inside out, the 8.5 offers everything you have ever wanted 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 capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD's 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor. The MSD's 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps; one for the sleeve of the wire and another separate crimp to grasp the conductor.

Manufacturer-listed applications

Match the engine, body, trim and installation requirements. All qualifications shown for an application apply together. Where this part requires a modified or aftermarket assembly, the vehicle listing alone does not confirm compatibility with factory equipment.

Vehicle	Configuration and qualifications
1966–1969 Chevrolet Biscayne 1968–1969 Chevrolet C10 Pickup 1968–1969 Chevrolet C20 Pickup 1968–1969 Chevrolet C30 Pickup 1968–1969 Chevrolet K10 Pickup 1968–1969 Chevrolet K20 Pickup 1968–1969 Chevrolet K30 Pickup 1966–1969 Chevrolet Bel Air 1968–1969 Chevrolet C10 Suburban 1968–1969 Chevrolet C20 Suburban 1967 Chevrolet Camaro 1966–1969 Chevrolet Caprice 1966–1970 Chevrolet El Camino 1966–1969 Chevrolet Impala 1968–1969 Chevrolet K10 Suburban 1969–1970 Chevrolet Nova 1969 GMC C15/C1500 Pickup 1969 GMC C15/C1500 Suburban 1968–1969 GMC C25/C2500 Pickup 1968–1969 GMC C25/C2500 Suburban 1969 GMC C35/C3500 Pickup 1969 GMC K15/K1500 Pickup 1969 GMC K25/K2500 Pickup 1969 GMC K35/K3500 Pickup	Engine: 6.5L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1966–1969 Chevrolet Biscayne 1966–1969 Chevrolet Bel Air 1966–1969 Chevrolet Caprice 1966–1969 Chevrolet Corvette 1966–1969 Chevrolet Impala	Engine: 7.0L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 427 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Biscayne 1973–1974 Chevrolet C10 Pickup 1973–1974 Chevrolet C20 Pickup 1973–1974 Chevrolet C30 Pickup 1973–1974 Chevrolet G10 Van 1973–1974 Chevrolet G30 Van 1974 Chevrolet K10 Pickup 1973–1974 Chevrolet K20 Pickup 1973–1974 Chevrolet K30 Pickup 1970, 1972 Chevrolet Kingswood 1970, 1972 Chevrolet Townsman 1973–1974 Chevrolet G20 Van 1970–1974 Chevrolet Bel Air 1973 Chevrolet Blazer 1973–1974 Chevrolet C10 Suburban 1973–1974 Chevrolet C20 Suburban 1970–1972 Chevrolet Caprice 1970–1974 Chevrolet Corvette 1970–1974 Chevrolet El Camino 1970–1974 Chevrolet Impala 1973 Chevrolet K20 Suburban 1970–1974 Chevrolet Monte Carlo 1973–1974 GMC C15/C1500 Pickup 1973–1974 GMC C15/C1500 Suburban 1973–1974 GMC C25/C2500 Pickup 1974 GMC C25/C2500 Suburban 1973–1974 GMC C35/C3500 Pickup 1974 GMC K15/K1500 Suburban 1973–1974 GMC K25/K2500 Pickup 1974 GMC K25/K2500 Suburban 1973–1974 GMC K35/K3500 Pickup 1973 GMC Jimmy 1971, 1973–1974 GMC Sprint	Engine: 7.4L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1968 Chevrolet Chevy II	Engine: 6.5L V8 Quantity: 1 Submodel: Nova Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970, 1972 Chevrolet Kingswood 1973–1974 Chevrolet Caprice	Engine: 7.4L V8 Quantity: 1 Submodel: Estate Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1966 Chevrolet Chevelle	Engine: 6.5L V8 Quantity: 1 Submodel: Super Sport 396 Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1967–1969 Chevrolet Chevelle	Engine: 6.5L V8 Quantity: 1 Submodel: SS 396 Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle 1970–1972 GMC C15/C1500 Pickup 1970–1972 GMC C15/C1500 Suburban 1970 GMC C25/C2500 Pickup 1970–1972 GMC C25/C2500 Suburban 1970 GMC C35/C3500 Pickup 1970–1972 GMC K15/K1500 Suburban 1970–1971 GMC K35/K3500 Pickup 1971, 1974 GMC Sprint	Engine: 6.6L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Concours Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Concours Estate Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Greenbrier Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Malibu Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Nomad Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: SS 396 Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: SS 454 Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1971–1973 Chevrolet Chevelle 1970–1974 Chevrolet El Camino	Engine: 7.4L V8 Quantity: 1 Submodel: SS Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1971–1972 Chevrolet Chevelle	Engine: 6.6L V8 Quantity: 1 Submodel: Heavy Chevy Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1971–1972 Chevrolet Chevelle 1970 Chevrolet Camaro	Engine: 6.6L V8 Quantity: 1 Submodel: SS Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973–1974 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Malibu Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Deluxe Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Laguna Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Laguna Estate Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Malibu Estate Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1974 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Laguna Type S-3 Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1974 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Malibu Classic Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1974 Chevrolet Chevelle	Engine: 7.4L V8 Quantity: 1 Submodel: Malibu Classic Estate Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973–1974 Chevrolet G20 Van	Engine: 7.4L V8 Quantity: 1 Submodel: Sportvan Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1967–1969 Chevrolet Camaro 1968–1969 Chevrolet El Camino 1966–1967 Chevrolet Impala	Engine: 6.5L V8 Quantity: 1 Submodel: SS Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1967 Chevrolet Camaro	Engine: 6.5L V8 Quantity: 1 Submodel: RS Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973–1974 Chevrolet Caprice	Engine: 7.4L V8 Quantity: 1 Submodel: Classic Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1968–1969 Chevrolet El Camino	Engine: 6.5L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 396 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1970–1974 Chevrolet El Camino 1973–1974 GMC Sprint	Engine: 7.4L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1966–1967 Chevrolet Impala	Engine: 7.0L V8 Quantity: 1 Submodel: SS Engine displacement (cu in): 427 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973–1974 Chevrolet Monte Carlo	Engine: 7.4L V8 Quantity: 1 Submodel: Landau Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1973 Chevrolet Monte Carlo	Engine: 7.4L V8 Quantity: 1 Submodel: S Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1972 GMC Sprint	Engine: 7.4L V8 Quantity: 1 Submodel: Custom Body style: Standard Cab Pickup Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1972 GMC Sprint	Engine: 6.6L V8 Quantity: 1 Submodel: Base Body style: Standard Cab Pickup Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1972 GMC Sprint	Engine: 6.6L V8 Quantity: 1 Submodel: Custom Body style: Standard Cab Pickup Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1972 GMC Sprint	Engine: 7.4L V8 Quantity: 1 Submodel: Base Body style: Standard Cab Pickup Engine displacement (cu in): 454 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.
1974 GMC Sprint	Engine: 6.6L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 402 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; Fits Chevy Big Block; w/Socket Style Distributor Cap.