Moroso 52555 Ultra Series Spark Plug Wires for Mopar Small Block 273-360

The Moroso 52555 Ultra Series spark plug wires deliver professional-grade ignition performance for Mopar small block engines. Designed specifically for 273, 318, 340, and 360 cubic inch Chrysler V8 engines, these high-performance wires feature a distinctive red sleeved construction that provides excellent heat resistance and protection.

Key Features:

• Ultra Series construction with durable red spiral-wound sleeving for maximum heat and abrasion protection
• Engineered for Mopar small block 273, 318, 340, and 360 engines
• Straight spark plug boot ends for tight clearance applications
• HEI-style distributor cap terminals for secure connection
• Low-resistance conductor core ensures strong, consistent spark delivery
• Suppression core design minimizes EMI and RFI interference with electronic systems
• Premium silicone jacket withstands extreme underhood temperatures
• Factory-style routing for clean, OEM-quality installation

Moroso Ultra Series plug wires are designed for enthusiasts who demand reliable ignition performance and professional appearance. The red sleeving not only looks sharp in the engine bay but also provides superior protection against heat, chemicals, and physical wear. These wires are an excellent choice for street performance, muscle car restorations, and hot rod builds using classic Mopar small block powerplants.