1975 GMC K25 Standard Spark Plug Wires

The MSD 8.5mm super conductor wire is the performance wire. 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) or 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. Available in universal kits and bulk lengths.

Product Features:

• Custom Fit For Make And Model Listed
• Wires Are Pre-Cut To Exact Specifications
• Bolt-on Performance
• Conductor core features DuPont Kevlar material for increased tensile strength
• Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
• Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

ACCEL now offers the cure for burnt spark plug boots with Extreme 9000 Ceramic wire kits. The 8mm Ferro-Spiral core wire now has ceramic boots on the spark plug end of the wires. Ceramic boots withstand up to 2,000 degrees. Great for running headers with close tolerances, an engine bay with little room, or an RV with boots that melt because of heat. Ultra high temperature double silicone construction wire rated at 600 degrees fahrenheit peak. 500 ohms/ft Ferro-Spiral core developed for performance use. Excellent energy delivery to the spark plugs, while providing the highest level of RFI/EMI suppression. Stainless steel spark plug terminals for maximum spark energy to the plugs. Pre-made to factory lengths for a perfect fit.

Product Features:

• Ceramic boots withstand up to 2,000░ Fahrenheit
• Ceramic boots withstand up to 2,000° Fahrenheit
• 8mm double silicone construction black wire rated at 600░ F rated
• 8mm double silicone construction black wire rated at 600° F rated
• 500 Ohms/foot ferro sprial core offers the highest level of RFI/EMI suppression
• Universal and custom fit applications
• Universal And Custom Fit Applications