10.5mm High Performance Spark Plug Wires Set Replacement for SBC HEI BBC Chevy 350 383 454 Electronic Item Description About this item [Fitment]: Universal spark plug wires fit for SBC and BBC Chevrolet engines; reference number: SP10-390-1024. [Easy Installation]: 90 boots for distributor; Straight boots for spark plug and Coil-In-Cap HEI design system. [Premium Material]: 100% pure silicone insulator outer layer, which can provide a good protection for the Kevlar spiral wound core from high temperature and moisture. [High Performance]: Equip your vehicle with the performance spark plug wires to enhance the spark at the plugs. These wires are capable of facilitating the delivery of maximum horsepower and ensuring optimal engine performance. [Purchase with Confidence]: We provide a one-year warranty; Please do not hesitate to contact the Spocoro seller if you encounter any issues. We will respond to you within 24 hours. ? See more product details Package Dimensions:10.55 x 9.69 x 2.64 inches; 2.07 Pounds Item model number:SP10-390-1024 Date First Available:July 30, 2021 Manufacturer:Spocoro ASIN:B09BK1R8B6 Best Sellers Rank:#23 in Automotive Replacement Spark Plug Wire Sets Customer Reviews:4.3 4.3 out of 5 stars *Get more Spark to your Plugs with a set of High Performance Ignition Wires. *Spiral-Wound Conductor has Extremely Low Resistance combined with extremely high EMI suppression. *These Performance wires deliver the highest possible energy to the spark plugs so that your ignition upgrades reach their full potential, without creating interference for onboard electronics. *The wires have a high dielectric strength insulator and heavy glass braid, topped with heavy-duty silicone jackets and high-temperature black boots to resist damage from heat and abrasion. These 10.5mm wires feature high-temperature 100% pure silicone insulator outer layer! 90 degree silicone boots on one end, sleeve and 10.5MM diameter silicone jacket can provide a good protection for the Kevlar spiral wound core from high temperature and moisture. Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.