Moroso 51047 Ultra 350 8mm Spark Plug Wires Black HEI for Ford 289/302/351W

Vehicle Fitment

• Ford 289 Small Block (HEI-style distributor cap)
• Ford 302 Small Block (HEI-style distributor cap)
• Ford 351W (Windsor) (HEI-style distributor cap)

Fitment Notes

• Designed for HEI-style distributor caps - confirm your distributor uses HEI-style terminals before ordering
• Multi-angle spark plug boots ease routing around headers and tight engine bays
• Red version of this set is Moroso 52047

Features

• Ultra 350 spiral-core ignition wire engineered to meet or exceed OEM specifications
• 350 ohms resistance per foot
• Stainless nickel alloy conductor wound around a conductive fiberglass core for reliable spark delivery
• Dual-layer high-heat EPDM outer jacket for superior heat and flame resistance
• Nylon reinforcing pull tape between jacket layers adds pull strength
• Inner insulation layer adds dielectric strength; effective RFI/EMI suppression
• Silicone plug boots with sure-grip, snap-lock terminals for positive connections
• Multi-angle boots for flexible routing; made in the USA

Specifications

• Product line: Moroso Ultra 350
• Wire diameter: 8mm
• Resistance: 350 ohms per foot
• Conductor: Spiral core, stainless nickel alloy
• Boot style: Multi-angle
• Distributor cap: HEI-style
• Color: Black

Included Components

• 1x Moroso 51047 Ultra 350 spark plug wire set (complete set for one engine)

Product Description

The Moroso 51047 is an Ultra 350 spiral-core spark plug wire set in black, built for small-block Ford 289, 302, and 351W engines running an HEI-style distributor cap. The Ultra 350 wire uses a stainless nickel alloy conductor on a spiral core at 350 ohms per foot, engineered to meet or exceed OEM specifications - a strong, cost-effective choice for street and performance applications.

The dual-layer high-heat EPDM jacket, separated by a nylon reinforcing pull tape, resists heat and flame while adding pull strength, and the inner insulation layer boosts dielectric strength with good RFI/EMI suppression. Silicone plug boots encase sure-grip, snap-lock terminals for positive connections, and the 8mm black wires use multi-angle boots to make routing around headers and tight engine bays easier. The set comes complete for one engine.