Pro 8mm Spark Plug Wire Set

The Spiro Pro 74657 is an 8mm performance spark plug wire set designed for street & strip, off-road, street rods, and custom cars. They feature a highly conductive stainless steel spiral-wound core that offers 350 ohms per foot resistance, contributing to increased horsepower, torque, and improved fuel mileage by delivering more fire to the spark plugs. The construction includes a 8.0mm outer silicone jacket, rated up to 65K volts and heat resistant to 600° Fahrenheit, ensuring durability in demanding conditions. The silicone inner core provides excellent heat protection and flexibility throughout the wire's lifetime. The set includes low-profile silicone Pro Boots with double spring lock spark plug terminals and a 135° spark plug boot angle. These wires also offer superior RFI/EMI suppression, which is beneficial for vehicles with CD or electronic ignitions, on-board computers, stereos, or pit radios. It is specifically designed for 1979-1988 Ford, Lincoln, and Mercury vehicles equipped with 5.0L or 5.8L V8 engines.