SKU: 49662425579

Sleeved Spark Plug Wires for SBC over valve cover, HEI - 31351

Sale price$139.92 Regular price$155.47
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Sleeved Spark Plug Wires for SBC over valve cover, HEI - 31351Overview: The MSD 8. 5mm Super Conductor is the ultimate performance wire! Its extremely low resistance combined with the ability to suppress Electro Magnetic Interference is a combination that defies the common laws of physics. Less resistance means more energy is going to make it to the spark plug to ignite the air fuel mixture. The Super Conductor uses a copper alloy conductor resulting in less than 50 ohms per foot of wire! This ensures that the

Overview:

The MSD 8.5mm Super Conductor is the ultimate performance wire! Its extremely low-resistance combined with the ability to suppress Electro Magnetic Interference is a combination that defies the common laws of physics. Less resistance means more energy is going to make it to the spark plug to ignite the air/fuel mixture. The Super Conductor uses a copper alloy conductor resulting in less than 50 ohms per foot of wire! This ensures that the most energy possible makes it to the spark plug. By helically winding the conductor around a special core, we are able to produce a highly effective choke to keep the EMI inside the wire and away from other electronics. This combination is encased in a heavy duty sleeve that will withstand abrasion and high temperatures. Cap off each end with our Dual Crimp Terminals and you have the best wire available. Equipped with high temp silicone-fiberglass sleeving for the harshest race conditions that protects wires up to 1,000 °F.

Features:

    Application:

    Year Make Model Submodel Engine Size
    Universal

    Specs:

    Boot Material Silicone
    Brand MSD
    Color Black
    Emission Code 5
    Product Type Spark Plug Wire Set
    Resistance 40-50 Ohms Per Foot
    Sleeved Yes
    Spark Plug Boot Angle 90 Degree
    Warranty Limited 1 Year Warranty
    Wire Diameter 8.5mm
    Wire Series 8.5 Super Conductor
    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: 49662425579

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    4.7 ★★★★★
    Based on 21 reviews
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    A
    Verified Purchase
    Amazon Customer
    Battle Creek, US
    ★★★★★ 3
    Ok
    Not bad not great. Quality feels cheap.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 30, 2025
    M
    Verified Purchase
    Mike H
    Chelsea, US
    ★★★★★ 5
    Lower unit water pump
    Worked fine
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 16, 2025
    R
    Verified Purchase
    ray whit
    Waukegan, US
    ★★★★★ 5
    Water impeller Johnson
    Size: 85-300 HP
    Worked perfect for my 1988 Johnson 88 spl already been on the water, no issues.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 15, 2026
    B
    Verified Purchase
    Brent Fuhrmann
    Chelsea, US
    ★★★★★ 5
    Great product
    Size: 75-250 HP
    Great product would purchase again
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2026
    Y
    Verified Purchase
    YouDon'tKnowMe
    San Leandro, US
    ★★★★★ 5
    1991 Evinrude 40 hp
    Size: 40-50 HP
    2nd time purchasing this item. The 1st one lasted 2 years, but my boat hasn't been used a lot either. The marine mechanic who replaced it for me said it was definitely time to replace it. He said it fits and works just fine. Has good water flow. As for quality and value, I'd say decent. The price is better than an OMC OEM pump. I plan on using my boat more this year, so we'll see how it holds up. I'll get it replaced at the end of the year. Ease of installation, NOT EASY. The lower unit has to be completely removed from the outboard. Some outboard are easier than others and as old as this one is, it's probably easier than some of the newer ones. I've watched a couple of videos on YouTube on how to do it and I might try to do it myself next time. It cost $360 to have it done and that's with me supplying the pump. He said it took him about 1½hours to do the job, but I was charged for 3 hours labor. Probably what the book shows. I'd buy it again and I'll try to do the job myself.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 18, 2026

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