Moroso 52574 Ultra Series Red Sleeved Spark Plug Wires Ford 351C/390/429/460 HEI

The Moroso Ultra Series spark plug wire set delivers race-proven ignition performance for Ford big block engines. Engineered with premium construction and high-temperature sleeving, these wires ensure reliable spark delivery under the most demanding conditions.

Key Features:

• Red ultra-high temperature aramid fiber sleeving provides superior heat resistance and professional appearance
• 135-degree plug boots allow proper clearance around headers and tight engine compartments
• Spiral wound conductor core suppresses EMI/RFI interference while maintaining low resistance
• Compatible with HEI-style distributors for modern ignition system conversions
• Fits Ford 351 Cleveland, 390, 429, and 460 cubic inch big block engines
• Premium terminals ensure positive connection at both spark plug and distributor
• High-temperature silicone inner insulation protects against voltage leakage

Moroso Ultra Series wires are designed for performance enthusiasts who demand reliability and quality. The distinctive red sleeving not only provides exceptional heat protection but also adds a custom look to your engine bay. Each wire is precisely cut and terminated for a factory-quality fit.