L18 / 8.1L Vortec Performance Spark Plug Wires

We offer a variety of performance spark plug wire sets for your 8.1L Vortec / 496 Mag engine. All of our direct replacement kits are feature low resitance designs for maximum power transfer. Our ceramic spark plug wire kits are a perfect solution for 8.1L / 496 engines with headers that won't quit burning spark plug boots.

vortec 8100 8.1l ceramic 8mm performance spark plug wires
Chevy/GM Truck-8.1L Ceramic Wires - $310
  • Ceramic boots withstand temperatures up to 2000°F
  • Won't melt in vehicles equipped with headers
  • 8mm Wires
  • Ultra low resistance design
  • Wire wound mag conductors
  • Available with white ceramic boots and your choice of Red or Black wires.
vortec 8100 8.1l jba 8mm performance spark plug wires
Chevy/GM Truck-8.1L JBA Wires - $210
  • 8mm Wires
  • Extra thick diameters
  • 100% silicone jackets
  • Ultra low resistance design
  • Wire wound mag conductors
  • Available in Red or Blue

496 MAG / 496cid Mercuiser Marine Spark Plug Wires

mercury marine 496 mag ceramic performance spark plug wires
Ceramic Marine Spark Wires - $310

Our ceramic spark plug wires are direct replacement for your unequal length 496MAG / 496MAG HO Mercury Marine wires and eliminate spark plug boot burning in applications with headers.

  • Ceramic boots withstand temperatures up to 2000°F
  • Won't melt in boats equipped with headers
  • 8mm Wires
  • Ultra low resistance design
  • Wire wound mag conductors
  • Available with white ceramic boots and your choice of Red or Black wires.
mercury marine 496 mag performance spark plug wires
Replacement Marine Spark Wires - $210

Don't waste $400+ buying replacements from the dealer! Our spark plug wires are direct replacement for your unequal length 496MAG / 496MAG HO Mercury Marine wires.

  • 8mm Wires
  • Extra thick diameters
  • Ultra low resistance design
  • Wire wound mag conductors
  • Available in Black

The Most Spark For Your Money

spark plug wire cutaway

Our ignition wires have less than half the resistance of most factory wires, which frees spark energy and increases performance! Get as much as 5+ hp gain with JBA PowerCables as tested by Car Craft Magazine. They feature 100% silicone jackets and unique boot ends designed for maximum clearance and long life for severe duty applications. These heavy duty ignition wires come standard with wire-wound mag conductors for superior electro magnetic interference suppression (EMI). In applications with headers where extreme heat is a concern, we offer ceramic plug wire kits which feature ceramic 45 degree boots rated to 2000°F!


ceramic spark plug wire set