MSD Red Super Conductor Ford 351M-400 HEI BCCX 31339 `

Call us today to order your MSD Red Super Conductor Ford 351M-400, HEI!

Part # 31339

• Wires are precut to exact specifications
• Custom fit for make and model listed.
• Bolt-on performance

"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."

Vehicle information below is not a guaranty of fitment. If you have fitment concerns, please call prior to ordering.

1978-1981 Ford Bronco Custom; 1978 Ford Bronco Northland; 1978-1981 Ford Bronco Ranger XLT; 1977 Ford Custom 500 Base; 1977 Ford Custom 500 Ranch Wagon; 1980 Ford E-100 Econoline Base; 1980 Ford E-100 Econoline Chateau; 1980 Ford E-100 Econoline Custom; 1980-1981 Ford E-250 Econoline Base; 1980-1981 Ford E-250 Econoline Chateau; 1980-1981 Ford E-250 Econoline Custom; 1980-1982 Ford E-250 Econoline Club Wagon Base; 1980-1982 Ford E-250 Econoline Club Wagon Chateau; 1980-1982 Ford E-250 Econoline Club Wagon Custom; 1980-1982 Ford E-350 Econoline Base; 1980-1982 Ford E-350 Econoline Chateau; 1980-1982 Ford E-350 Econoline Custom; 1980-1982 Ford E-350 Econoline Club Wagon Base; 1980-1982 Ford E-350 Econoline Club Wagon Chateau; 1980-1982 Ford E-350 Econoline Club Wagon Custom; 1977-1978 Ford F-100 Base; 1977-1981 Ford F-100 Custom; 1977-1978 Ford F-100 Northland; 1977-1981 Ford F-100 Ranger; 1978-1981 Ford F-100 Ranger Lariat; 1977-1981 Ford F-100 Ranger XLT; 1977 Ford F-100 XLT; 1977-1978 Ford F-150 Base; 1977-1981 Ford F-150 Custom; 1977-1978 Ford F-150 Northland; 1977-1981 Ford F-150 Ranger; 1978-1981 Ford F-150 Ranger Lariat; 1977-1981 Ford F-150 Ranger XLT; 1977 Ford F-150 XLT; 1977-1978 Ford F-250 Base; 1977-1982 Ford F-250 Custom; 1977-1978 Ford F-250 Northland; 1977-1981 Ford F-250 Ranger; 1978-1981 Ford F-250 Ranger Lariat; 1977-1981 Ford F-250 Ranger XLT; 1982 Ford F-250 XL; 1982 Ford F-250 XLS; 1977 Ford F-250 XLT; 1982 Ford F-250 XLT Lariat; 1977-1978 Ford F-350 Base; 1977-1982 Ford F-350 Custom; 1977-1978 Ford F-350 Northland; 1977-1981 Ford F-350 Ranger; 1978-1981 Ford F-350 Ranger Lariat; 1977-1981 Ford F-350 Ranger XLT; 1982 Ford F-350 XL; 1982 Ford F-350 XLS; 1977 Ford F-350 XLT; 1982 Ford F-350 XLT Lariat; 1977-1978 Ford LTD Base; 1977-1978 Ford LTD Country Squire; 1977-1978 Ford LTD Landau; 1977-1979 Ford LTD II Base; 1977-1978 Ford LTD II Brougham; 1979 Ford LTD II Landau; 1977-1979 Ford LTD II S; 1977 Ford LTD II Squire; 1977-1979 Ford Ranchero 500; 1972-1979 Ford Ranchero GT; 1977-1979 Ford Ranchero Squire; 1977-1979 Ford Thunderbird Base; 1978 Ford Thunderbird Diamond Jubilee; 1979 Ford Thunderbird Heritage; 1978-1979 Ford Thunderbird Town Landau; 1977-1979 Lincoln Continental Base; 1977-1979 Lincoln Mark V Base; 1977-1979 Mercury Cougar Base; 1977 Mercury Cougar Brougham; 1977 Mercury Cougar Villager; 1977-1979 Mercury Cougar XR-7; 1977-1978 Mercury Grand Marquis Base; 1977-1978 Mercury Marquis Base; 1977-1978 Mercury Marquis Brougham

We are an authorized retailer for all MSD products. The standard manufacturer warranty applies. If you ever have manufacturer warranty concerns or questions on products you purchased from us, we can help! We are a family owned and operated company that values all of our customers. We are here to assist with all future warranty concerns!