SKU: 93497738201

Red Super Conductor Ford 351M-400, HEI - 31339

$93.57 $103.97
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Red Super Conductor Ford 351M-400, HEI - 31339Overview: 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

Overview:

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.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1977 - 1982 Ford F-350 4/8 V
    1977 - 1981 Ford F-150 4/8 V
    1977 Mercury Cougar Villager 4/8 V
    1977 Ford LTD II S 4/8 V
    1980 - 1982 Ford E-250 Econoline Club Wagon 4/8 V
    1977 - 1978 Mercury Marquis 4/8 V
    1977 - 1978 Ford LTD Base 4/8 V
    1977 Mercury Cougar Base 4/8 V
    1977 - 1982 Ford F-250 4/8 V
    1978 - 1981 Ford Bronco 4/8 V
    1978 - 1979 Mercury Cougar 4/8 V
    1972 - 1978 Ford Ranchero GT 4/8 V
    1977 - 1978 Ford Ranchero 500 4/8 V
    1977 - 1978 Ford LTD Landau 4/8 V
    1977 Ford LTD II Base 4/8 V
    1977 Ford Custom 500 Base 4/8 V
    1977 - 1979 Ford Thunderbird 4/8 V
    1977 - 1978 Ford Ranchero Squire 4/8 V
    1977 Mercury Cougar Brougham 4/8 V
    1977 - 1978 Lincoln Continental 4/8 V
    1977 Ford LTD II Squire 4/8 V
    1978 - 1979 Ford LTD II 4/8 V
    1977 - 1979 Ford F-100 4/8 V
    1979 Ford Ranchero 4/8 V
    1977 - 1978 Lincoln Mark V 4/8 V
    1977 - 1978 Mercury Grand Marquis 4/8 V
    1979 Lincoln Mark V /
    1980 - 1981 Ford E-250 Econoline 4/8 V
    1977 Mercury Cougar XR-7 4/8 V
    1972 - 1973 Ford Ranchero GT U/K/8 V
    1977 Ford LTD II Brougham 4/8 V
    1980 - 1982 Ford E-350 Econoline Club Wagon 4/8 V
    1977 - 1978 Ford LTD Country Squire 4/8 V
    1980 - 1982 Ford E-350 Econoline 4/8 V
    1979 Lincoln Continental /
    1977 Ford Custom 500 Ranch Wagon 4/8 V
    1980 Ford E-100 Econoline 4/8 V

    Specs:

    1 Cylinder 30”
    2 Cylinder 30”
    3 Cylinder 30”
    4 Cylinder 32”
    5 Cylinder 31”
    6 Cylinder 40”
    7 Cylinder 30”
    8 Cylinder 30”
    Brand MSD
    Coil Wire 14”
    Emission Code 5
    Product Type Spark Plug Wires
    Warning California Proposition 65
    Warranty Limited 1 Year Warranty
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 93497738201

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    4.1 ★★★★★
    Based on 19 reviews
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    Product Reviews
    G
    Verified Purchase
    ginger
    Belleville, US
    ★★★★★ 5
    The glasses are made well
    Color: Pearl Brown Tort, Size: 53-16-135
    The glasses fit well and are made well. They are Great value for the money.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 24, 2024
    S
    Verified Purchase
    SirTW
    Los Angeles, US
    ★★★★★ 5
    Sleek, upscale and supremely comfortable
    Size: 9, Color: Cognac
    I did not know that Marc Joseph makes hands free slip ins. I own four pair of Skechers, and I thought they were the only game in town. I decided that I wanted a pair of business casual pair of wingtips. I already own two pair of Skechers Mark Nason wingtips in blue and black nubuck, so I bought a pair of their cognac colored. Perfectly fine shoes, but when they arrived, I didn't like the color, so the search was on! I found these cognac-colored Mark Joseph's and hands down, they fit the bill for what I was looking for! I actually bought two more pair of Skechers in the brown family in the same oxford, elastic lace style: One pair of another style of their Mark Nason line and one pair of their Garza line. So now I am comparing three pair of Skechers to the Marc Joseph's. Obsessive, I know :). Luckily, I have a Skechers store near me for easy returns. The look I was going for is a sleek, business casual that I could dress up or down. Three things that I love about the Marc Joseph's are the beautiful cognac finish: the white yet lower profile soles and the more formal, narrower toe style. The MJ's nailed it with the color. They have a slightly darker, more lustrous and glossier look than the others. The color alone looks classier and pairs well with black pants which I wear for work almost every day. The white soles are exactly what I was looking for. The visible rise is probably about a third of the thickness of the others and are a much more subtle, classier look. They offset the cognac color nicely but are not that in your face, sneaker looking, thick white sole. When I was comparing them to the others right out of the box, I thought they would be too narrow and tight because they looked sleeker and narrower than the others. But they fit perfectly and were very comfortable right out of the box. Upon closer inspection and comparison, I realized the narrower, sleeker look is because the eyelets for the elastic shoelaces are closer together that give the illusion that the shoe is narrower. They compensate for what might create a tighter fit across the top of your foot with two stretchy "gores" they are called on either side of the upper part. The "slits" are nicely finished, and you can't see the stretchy part and add a nice design touch to the shoe. But between them and the elastic shoelaces, they must stretch just enough to make them extremely comfortable across the top. So, if you have a high instep/arch, they should accommodate it nicely. Last but not least, they are very comfortable shoes. I wear a size 8 1/2 to 9 and my foot is slightly on the wide side. I bought the size 9's and they fit perfectly. If you are between sizes or have wider feet, you may want to size up a half size. Because the Skechers have much thicker soles, they might be slightly more cushioned, but the MJ's are cushioned more than enough for my purposes and very comfortable. Plus, they actually just feel better on my feet. I can't speak to how durable they will be as I just got them, but so far, so good. So, there you have it. I rely on other people's reviews a lot when buying online, and especially for shoes. I know it's always a crap shoot, particularly when buying shoes online, so I hope this review helps. Everybody's feet are different, but I highly recommend these.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 15, 2025
    B
    Verified Purchase
    Ben
    Louisville, US
    ★★★★★ 5
    Comfortable and look great!
    Size: 10.5, Color: Cognac
    Very comfortable, look nice, and slip on easily.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 4, 2026
    J
    Verified Purchase
    jacqueline cosey
    Cuba, US
    ★★★★★ 5
    Great buy
    Size: 8.5 Wide, Color: Cognac
    True to size. Love the style and feels amazing on your feet... Great item to buy!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 26, 2026
    J
    Verified Purchase
    Jc
    Battle Creek, US
    ★★★★★ 4
    Checkpoint
    Size: 10.5 Wide, Color: Navy Grainy Leather
    Good shoes, comfortable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026

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