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 24 - Jul 29

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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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    4.2 ★★★★★
    Based on 13 reviews
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    Product Reviews
    N
    Verified Purchase
    Nathalie M. Rosario Escobar
    Fort Morgan, US
    ★★★★★ 5
    Very good
    Color: 01-black, Size: Small
    It looks so good on my bf, he really like it. The quality is so perfect.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 15, 2026
    J
    Verified Purchase
    Javian Campbell
    Boise, US
    ★★★★★ 5
    Good quality
    These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 30, 2025
    R
    Verified Purchase
    Ruby
    Lowell, US
    ★★★★★ 5
    Buy it
    If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 21, 2024
    M
    Verified Purchase
    Make it Do!
    Whiting, US
    ★★★★★ 5
    What you see is what you get!
    Color: 01-black, Size: Large
    Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 11, 2026
    S
    Verified Purchase
    SeanCeltiad
    Draper, US
    ★★★★★ 4
    A true turtleneck that retains a snug high neck.
    Color: White, Size: X-Large
    I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 30, 2025

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