Moroso 52561 Ultra Series Spark Plug Wires Red Sleeved Mopar 361 383 400 440

The Moroso 52561 Ultra Series spark plug wires deliver high-performance ignition for Mopar big block engines. Designed specifically for Chrysler 361, 383, 400, and 440 cubic inch V8 engines, these premium wires feature a distinctive red sleeved construction that combines superior electrical performance with classic hot rod aesthetics.

Key Features:

• Ultra Series construction with spiral-wound conductor core for maximum spark energy and EMI/RFI suppression
• Red silicone outer sleeve withstands extreme temperatures up to 600°F and resists oil, chemicals, and abrasion
• Straight boot design on spark plug ends for applications with limited clearance
• Configured for non-HEI distributors with appropriate distributor terminal
• Low-resistance design ensures consistent spark delivery and improved throttle response
• Heavy-duty construction ideal for street performance, drag racing, and restoration applications

Moroso Ultra Series wires are engineered to handle the demands of high-performance ignition systems while maintaining reliable operation under harsh conditions. The premium silicone sleeving provides excellent protection against heat and engine bay chemicals, while the spiral-wound core delivers consistent spark energy to each cylinder. These wires are a direct-fit solution for Mopar big block engines running traditional points-style or electronic ignition distributors without HEI-style terminals.