Moroso 73678 Ultra 40 Black Spark Plug Wire Set for Big Block Chevy ZZ 632

The Moroso 73678 Ultra 40 spark plug wire set is specifically engineered for Big Block Chevy ZZ 632 crate engines equipped with the 72401 coil mount configuration. These high-performance ignition wires feature Moroso's Ultra 40 construction, delivering reliable spark energy transfer and superior electromagnetic interference suppression.

Key Features:

• Custom-fitted for Big Block Chevy ZZ 632 engines with 72401 coil mount
• Ultra 40 low-resistance core for maximum spark energy delivery
• Black silicone jacket resists heat up to 600°F and repels oil, chemicals, and moisture
• Precision terminals ensure positive connection at both spark plug and distributor
• Suppresses EMI/RFI interference to protect sensitive electronics
• 8.5mm diameter wire construction for durability and performance

Moroso Ultra 40 wires are designed to withstand the extreme demands of high-performance and racing applications, providing consistent ignition performance and long service life. The sleeved construction prevents cross-firing while maintaining flexibility for easy routing and installation.