This Taylor 74602 Spiro-Pro 8MM Spark Plug Wire Set is designed for GM engines and is a top choice of street as well as racing enthusiasts. The 100% silicone inner core and outer jacket provides heat protection up to 600 degrees F, while the spiral wound core only has 350 ohms per foot resistance. This provides maximum firepower to your spark plugs without radio interference. This is essential for on-board electronic ignitions as well as computers! Taylor 74602 Spiro-Pro Spark Plug Wire Set Features: Fits: GM engines Wire Color: Blue Spark Plug Boot Color: Blue Distributor Boot Color: Black Diameter: 8.00mm Spark Plug Boot Ends: Eight 90 Degree Distributor Terminal Ends: Male/HEI Spark Plug Boot Material: Silicone Distributor Boot Material: Silicone Conductor Style: Spiral Core Spark Plug Wire Resistance: 350 ohms/ft. RFI Suppression: Yes Coil Wire Included: Yes Assembled: Yes Universal: No Quantity: Sold as a set For over 90 years, Taylor Cable Products have been the top choice of racers and enthusiasts for its value in addition to high-performance features. Taylor Cable is an icon of quality as well as customer satisfaction in the automotive performance and racing markets. We are proud to have our Ignition Wire Sets firing some of the fastest race and street vehicles in the world.