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Moroso 73820

Ultra 40 Race Spark Plug Wire Set Big Block Chevy

Moroso 73820

Part Number: 710-73820

Ultra 40 Race Spark Plug Wire Set
  • Big Block Chevy
  • Sleeved Wire Set
  • HEI Style Distributor Cap
  • 90° Spark Plug Boot
  • Wires Run Under Headers
  • 8.65mm
  • $169.99
    Made In USA
    FREE Shipping
    Moroso 73820 Ultra 40 Race Spark Plug Wire Set Big Block Chevy $169.99


    Spark Plug Boot Material
    Conductor Style
    Spiral core
    Distributor Terminal Ends
    Sold as a set
    RFI Suppression
    Spark Plug Boot Color
    Spark Plug Boot Ends
    Eight 90 degree
    Spark Plug Boot Ends (Deg)
    90 degrees
    Wire Color
    Diameter (mm)
    Coil Wire Included
    Manufacturer's Part Number:

    The most powerful wire ever!
    Highest spark energy transfer. Highest EMI/RFI suppression. Highest horsepower gain. The Ultra 40 Race Spark Plug Wire's extra insulation extends spark plug wire life against exhaust header heat, chaffing and contaminants. Closely woven fiberglass, impregnated with high-voltage-leak resistant silicone adds up to 8,000 volts of extra insulation. At 40 ohms of resistance per foot, Moroso Ultra 40 Race Spark Plug Wire incorporates a spiral wound nickel/copper alloy conductor wrapped at the optimum ratio to produce the highest level of spark energy while producing the lowest level of electromagnetic and radio frequency interference. The Kevlar core is four times stronger than other aramid fibers cores, allowing an increase in the tensile strength of the wire while reducing the center diameter and at the same time increasing the surrounding insulation resulting in greater dielectric strength.

  • The standard in high performance ignition wire
  • Optimiized EMI/RFI resistance
  • Used in the highest level of racing applications ranging from dual mag Top Fuel Cars thru NASCAR Sprint Cup Series
  • 7mm or 8.65mm diameter wire with 40 ohms of resistance per foot
  • Incorporates a highly engineered spiral wound conductor
  • Maximizes energy transfer and minimizes electro magnetic interference (EMI) and radio frequency (RF) interference noise

    Note: Straight plug boot kits are bendable to 45 Degrees.

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