MOROSO 73616 Ultra 40 Spark Plug Wire Set with Spiral Core and Blue Sleeving for Big Block Chevy, 8.65 mm Diameter, 90 Degree HEI Style Boots

The MOROSO 73616 Ultra 40 Spark Plug Wire Set is designed for high-performance applications, featuring spiral core construction to reduce electromagnetic interference and ensure reliable spark delivery. This 8.65 mm diameter wire set is sleeved with durable blue material, providing both protection and a visually appealing look. The set includes 90-degree HEI style boots, optimized for under-header installation on Big Block Chevy engines, offering a secure fit and improved ignition performance. Ideal for enthusiasts seeking quality ignition wiring that combines durability with optimal electrical conductivity, this kit ensures consistent engine performance and reliable spark transfer under demanding conditions. The wires are constructed to withstand high temperatures and harsh engine environments, making them suitable for street and racing applications alike. Easy to install and designed for specific vehicle fitment, the Ultra 40 set enhances ignition system efficiency and engine responsiveness, contributing to overall vehicle performance and reliability.

Features:

• Spiral core construction reduces electromagnetic interference for stable spark delivery

• 8.65 mm diameter silicone sleeved wires for durability and heat resistance

• Blue sleeving provides a clean, professional appearance

• Includes 90-degree HEI style boots for secure fit under headers

• Designed specifically for Big Block Chevy engines for optimal fit and performance