CarBole 7mm RED Spark Plug Wires/Powercable 1994-1995 Chevy GMC Truck 5.0/5.7L 1. Brand : CarBole ; Diameter (mm): 7.00mm; Black stock boots Super Stock Spark Plug Wires . 2. The 550 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. 3. Application(Engine): 1994~1995 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated & 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated. 4. Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal . Coil retainer prevents fretting and micro-arcing . 5. Strength enhancing components and thick, high temperature insulation jacket for outstanding resistance to heat, oil, and abrasion while promoting durability and protection .