Ultra Plug Wire Set BBM 361-440 Black

The Ultra Plug Wire Set BBM 361-440 Black from MOROSO is engineered for classic high-performance Mopar engines, delivering reliable spark delivery to your B-Series and RB-Series big-block power plants. Designed for enthusiasts and restoration specialists who demand consistent ignition timing and durability, this spiral core wire set addresses the critical need for heat-resistant, noise-suppressing spark plug connections in vintage and street applications where engine bay temperatures run hot and electrical interference can compromise performance.

Built with an 8 mm spiral core construction, the Ultra Plug Wire Set features superior electromagnetic shielding that reduces RFI and EMI noise while maintaining optimal spark energy transfer across all eight cylinders. The straight plug boots and socket-style terminal connections ensure secure, positive contact at both the distributor cap and spark plugs, while the black jacketing resists UV degradation and oil contact common in vintage engine bays. This design philosophy prioritizes voltage integrity under load—critical when running vintage ignition systems or high-output alternators that can introduce electrical noise.

Ideal for 361, 383, 400, and 440 cubic-inch Mopar B and RB-block engines, this wire set is perfect for hot rods, muscle car restorations, and street performance builds where factory-style reliability matters. Installation is straightforward on original distributor-based ignition systems; the straight boots work with stock valve covers and tight engine bay layouts. Whether you're refreshing a 1960s Dodge Charger or Chrysler 300 or upgrading a performance rebuild, the Ultra Plug Wire Set BBM 361-440 Black provides the dependable spark delivery your vintage big-block deserves.