Ton's Performance custom 10mm thick spark plug wire kit for Big Block Chevy / BBC Product Details Looking to add extra thick wires and ceramic plug ends to prevent burnt boots? These custom ceramic wires are the way to go to stand out from others. Built with modernized spiral wound suppression core, the wires offer excellent RFI suppression and is made out of two layers of silicone with a final thickness of 10mm. Ton's is one of very few companies that offers custom wires for many different applications in the aftermarket motorsports world. If you need a set of ready to install or universal wires for a custom built project, send us a message for more details. Specifications: Conductor Style: Spiral Core Type: Custom Fit, Over valve cover or Under Headers Distributor Terminal End: Male/HEI or Socket Type/Points Spark Plug Boot End: 135 Degree or 90 Degree Resistance: 500 Ohms Per Ft Distributor Boot Material: Silicone Spark Plug Boot Material: Ceramic, up to 2000 degrees Fahrenheit protection Assembled: Yes RFI Suppression: Yes Coil Wire Included: Yes Diameter: 10 mm Quantity: Sold As One Kit Features: Helically Spiral Wound Core Durable Silicone Layered jacket 500 Ohms Per Foot Resistance Double Spring Lock Terminals Suppresses EMI And RFI Includes: 8 x Plug wires & 1 universal coil wire (if applicable)*** FREE ASSEMBLY FOR COIL WIRE IF YOU MESSAGE US THE LENGTH PRIOR TO PURCHASE! ***