Super Conductor Spark Plug Wire Set, Big Block Chevy Marine, HEI

For use on Chevy Big Block Marine engines, HEI, Red jacket

PART# 31489

$119.95   Suggested Retail
$107.95   Your Price
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Reliability is just as important as performance in marine applications and MSD’s spark plug wires are up for the task. MSD wires are designed with a tough, high heat sleeve that also provides excellent abrasion protection. Dual Crimp terminals provide the strongest connections to the wire and lock to the spark plug terminal.


  • Custom fit for make and model listed.
  • Wires are precut to exact specifications
  • Bolt-on performance


Emission Code1
Part Number31489


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

*Free Shipping & Handling only offered to the continental US on orders over $100.

Some parts are not legal for use in California or other states with similar regulations.