Moroso 73765 Ultra 40 8.5mm 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

Features

• Ultra 40 spiral-wound nickel/copper alloy conductor for maximum spark energy transfer
• 40 ohms resistance per foot
• Kevlar core - about four times stronger than typical aramid-fiber cores for high tensile and dielectric strength
• Closely-woven fiberglass impregnated with silicone adds up to 8,000 volts of extra insulation
• High EMI/RFI suppression for cleaner electronics and radio operation
• Extra insulation resists exhaust header heat, chafing, and contaminants to extend wire life
• Multi-angle boots for flexible, clean routing
• Made in the USA

Specifications

• Product line: Moroso Ultra 40
• Wire diameter: 8.5mm
• Resistance: 40 ohms per foot
• Conductor: Spiral-wound nickel/copper alloy
• Core: Kevlar
• Boot style: Multi-angle
• Distributor cap: HEI-style
• Color: Black

Included Components

• 1x Moroso 73765 Ultra 40 spark plug wire set (complete set for one engine)

Product Description

The Moroso 73765 is an Ultra 40 race spark plug wire set built for small-block Ford 289, 302, and 351W engines running an HEI-style distributor cap. The Ultra 40 design uses a spiral-wound nickel/copper alloy conductor at 40 ohms per foot to deliver high spark energy while keeping electromagnetic and radio-frequency interference low - important for engines running modern ignition and electronics.

A Kevlar core gives the wire roughly four times the tensile strength of typical aramid-fiber cores, and the closely-woven, silicone-impregnated fiberglass jacket adds up to 8,000 volts of extra insulation while protecting against header heat, chafing, and contaminants. The 8.5mm black wires use multi-angle boots to make routing around headers and tight engine bays easier, and come as a complete set ready to install.