Moroso 73763 Ultra 40 8.5mm Spark Plug Wires Black Universal HEI/Non-HEI Cap

Vehicle Fitment

• Universal - fits applications using HEI-style or non-HEI-style distributor caps

Fitment Notes

• Universal set designed to work with both HEI and non-HEI style distributor caps
• Multi-angle spark plug boots allow flexible routing around headers and tight engine bays
• Verify your distributor cap terminal style and required wire lengths before installation

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 and universal cap compatibility for versatile installs
• 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: Universal (HEI and non-HEI style)
• Color: Black

Included Components

• 1x Moroso 73763 Ultra 40 universal spark plug wire set

Product Description

The Moroso 73763 is a universal Ultra 40 race spark plug wire set in black, built to work with both HEI-style and non-HEI-style distributor caps. 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 - valuable on 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 for flexible routing, and the universal design makes the set adaptable across a wide range of distributor setups.