8.5mm; Red; Fits Small Block Chevy w/HEI Tower Cap; OEM Cut Custom Spark Plug Wire Set 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 its 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 MSDs 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 MSDs 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. Brand: MSD Condition: New
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
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Specifications & Info
Attribute
Value
Boot Type
Hei Boot
Engine
Chevy Small Block
WARNING CA Proposition 65
Yes
Vehicle Fitment Guide
This part fits the following vehicles:
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GMC1 model(tapclick to expand)(tapclick to hide)
Jimmy1971(tapclick to expand)(tapclick to hide)
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SubmodelSUB- MODEL
Body Style
Years
Engine
Attributes
Base
SUV
1971
L6 4.1L
RWD/4WD Automatic & Manual & U/K
Base
SUV
1971
L6 4.8L
RWD/4WD Automatic & Manual & U/K
Base
SUV
1971
V8 5.0L
RWD/4WD Automatic & Manual & U/K
Base
SUV
1971
V8 5.7L
RWD/4WD Automatic & Manual & U/K
Years
Make
Model
Submodel
Body Style
Engine
Attributes
1971
GMC
Jimmy
Base
SUV
L6 4.1L
RWD/4WD Automatic & Manual & U/K
1971
GMC
Jimmy
Base
SUV
L6 4.8L
RWD/4WD Automatic & Manual & U/K
1971
GMC
Jimmy
Base
SUV
V8 5.0L
RWD/4WD Automatic & Manual & U/K
1971
GMC
Jimmy
Base
SUV
V8 5.7L
RWD/4WD Automatic & Manual & U/K
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.
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Shipping Information
We offer fast, reliable shipping on all orders:
Ships to all countries via US Postal Service Priority Mail.
Most orders ship within 1 business day.
Delivery time: 1-4 business days after shipment.
International shipping available, including APO/FPO addresses.
Tracking information provided for all shipments.
Additional handling fees may apply for oversized/overweight packages.
Return Policy
We want you to be 100% satisfied with your purchase. That's why we offer:
120-Day Returns - Return any part within 120 days from date of receipt.
Must obtain RMA (Return Merchandise Authorization) number before returning.
Parts must be in original condition, uninstalled, unaltered, and in original packaging.
Important: Electrical parts are not returnable if unsealed.
Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
Refunds processed after warehouse receives return and credited to original payment method.
Warranty
This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.
Warranty does NOT cover:
Shipping costs or labor expenses.
Installation errors.
Parts used for racing.
Commercial vehicle parts.
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 its 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 MSDs 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 MSDs 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.
In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.
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120
Day Return Window
4× the Industry Standard
Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.
NEW
Direct-Fit Replacement
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