Moroso 73747 Ultra Spark Plug Wires for GM LS Engines - 40 8.5mm Black

The Moroso Ultra 40 Spark Plug Wires deliver high-performance ignition for GM LS engines including 4.8L, 5.3L, 6.0L, and 6.2L applications. These premium ignition wires feature a robust 8.5mm diameter design with integrated heat shields to protect against header and exhaust heat, ensuring reliable spark delivery even in demanding conditions.

Key Features:

• 8.5mm low-resistance conductor core for maximum spark energy transfer
• 11-inch wire length designed specifically for GM LS engine configurations
• Integrated heat shields protect wires from extreme temperatures
• Black high-temperature silicone jacket resists oils, chemicals, and heat up to 600°F
• Suppression core design minimizes EMI/RFI interference with electronics
• Durable spark plug and distributor boots ensure positive connections
• Direct-fit application for hassle-free installation

Moroso Ultra 40 wires are engineered for performance enthusiasts who demand reliable ignition in high-heat environments. The heat shield protection makes these wires ideal for applications with tight header clearances or turbocharged setups where exhaust temperatures are elevated. Professional-grade construction ensures long service life and consistent performance.