SKU: 12721470148

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

$139.92 $155.47
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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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: 12721470148

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    4.6 ★★★★★
    Based on 30 reviews
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    Product Reviews
    R
    Verified Purchase
    Room112
    Charlottesville, US
    ★★★★★ 5
    Great for big dogs
    Size: Medium, Number of Items: 1
    Our pup is now 15 months old (nearly 110 lb and still growing). We got this ball when he was 3 or 4 months old. GOODS - - Our pup fetches with extreme drive, and the rope helps him quickly snatch the ball off the ground (versus a tennis ball, in which we are worried he will go head over heels at times) - Our pup also loves to play fetch in the water, and this ball floats great and again, the rope gives another point to bite onto - The yellow color is easy to see, even in grass - Our pup typically fetches the ball, and leaves the rope mostly out of his mouth. So, throwing the ball doesn't result in saliva-covered hands - It's pretty easy to throw the ball 50', and possible to throw it 100' - It doesn't roll/bounce, so if you are for example playing fetch on your front lawn and are concerned with a tennis ball rolling into the street, this one alleviates that issue - Our pup is spoiled and has several balls. This is absolutely his go to ball. We have woken up in the morning before to see him standing next to the bed with the ball in his mouth, asking us to get up and play. BADS - - Occasionally when he goes to fetch it, he will step on the rope as he tries to pull up on the ball. - We have gotten this ball stuck in trees multiple times. In fact, there is one stuck on the roof of our church from playing fetch on the lawn there. :-/ Not a fault of the ball, but if you start whipping it around like nunchucks, it might not go where you want. - The near max you can through this ball is 100'. And since it doesn't roll/bounce, throw distance is throttled. We often play fetch in a local baseball field, and have no issue wearing him out with this ball. However, if you are planning on throwing a ball the distance of half a football field, you might want to consider something else. SIZE - - We purchased both the medium and the large. Even though our pup is huge and can fit a soccer ball in his mouth, he still prefers the medium. It's easier for him to get in his mouth and breath while running back. The medium is the size of an orange, whereas the large is the size of a grapefruit. DURABILITY - - We have gone through about 4 of these balls, BUT this is because we lost 3 of them. We believe he dropped one out of the car window while we were driving, one is on the roof of our church, and I forget about the other one. On the first one we had, the stitching behind the black tape was down to a few threads after about 5 months. Given duration we use these balls (every day) and the joy he gets from them, I feel the durability is good for the price. - We do play tug with the ball at times, and no issues there Enjoy!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 17, 2013
    G
    Verified Purchase
    Greg
    Louisville, US
    ★★★★★ 3
    Good but better options out there.
    Good ball, but is a cheaper version of the Foamster sold online. The rope is cheap and comes apart, and can be abrasive to a dogs mouth. The Foamster uses a higher quality ball and are more durable and use grippy biothane straps rather than cheap rope. They are also made to order in the USA with lots of fun colors. Worth the extra money if your dog likes these balls.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 10, 2025
    K
    Verified Purchase
    Kristen
    Louisville, US
    ★★★★★ 5
    Fun toy for fetch
    Size: Medium, Number of Items: 1
    Daisy loves this toy. I found it from her dog trainer, and it makes rewarding her with a quick tug of war and fetch really easy. Also it’s shockingly durable. It looks like foam, but she has not destroyed this one.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 11, 2025
    G
    Verified Purchase
    Gus
    Waukegan, US
    ★★★★★ 5
    Heavy chewer approved.
    Style: Ball, Size: Medium (Pack of 1)
    My pomsky will destroy a toy in minutes. Ropes, and the "indestructible" nylon type stuffs are no match for my furry shark. This ball has stood up to him like David. He loves the crunch and it is so much more tolerable than a squeaker. These will be a staple in his toy box - Chuckit toys are really the most durable dog toys I have found in three years.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026
    G
    Verified Purchase
    Gold Coast
    Los Angeles, US
    ★★★★★ 5
    Fun Ball
    Style: Ball, Size: Medium (Pack of 2)
    Great new ball for our pup. He loves the sound of the crunch!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2026

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