Extreme Race Wires 8 Inch Spark Plug Wires for LS Engines
When fitting an LS engine into a tight swap bay, the Extreme Race Wires 8 Inch spark plug wires tackle clearance challenges with precision cut lengths that keep ignition leads clear of header tubes. Each wire features an 8 mm conductive core tuned to 25 ohm per foot resistance to filter interference and preserve spark energy under heavy throttle. Wrapped in a thick silicone jacket rated to 600 °F, wires resist heat and chemical exposure for dependable service life. The molded boots set at 45 degrees guide wires around valve covers and headers for a neat layout and reliable connection.
Precision Impedance for Consistent LS Ignition
The 8 millimeter core of these spark plug wires is calibrated to exactly 25 ohm per foot of resistance, striking a careful balance between spark energy delivery and suppression of radio frequency interference. In cramped LS engine compartments, stray noise can disrupt coil firing and throttle response, but these calibrated impedance leads filter out unwanted signals while directing maximum current to the spark plug gap. This ensures each cylinder experiences an even burn cycle, yielding smoother idle and reliable spark under high load. By reducing stress on ignition coils and control modules, the precise tuning also extends the service life of key engine electronics. Drivers notice more consistent performance throughout the RPM range and greater confidence under boost or heavy acceleration.
Silicone Insulation Engineered for Extreme Heat
Surrounding each 8 millimeter conductor is a thick silicone jacket rated to resist temperatures up to 600 degrees Fahrenheit, offering robust protection against radiant heat from exhaust headers or turbochargers. Unlike conventional rubber sheaths that lose flexibility and crack over time, premium silicone retains its elasticity and resists damage from oil vapors and cleaning chemicals. This allows installers to route wires close to header tubes or manifold flanges without fear of insulation breakdown. The chemical tolerance prevents swelling or brittleness, so each lead maintains its original shape throughout extended service intervals. In practice, this means fewer heat related failures, longer service life and dependable ignition performance even in severe under hood environments.
Angled Boots Deliver Seamless Routing in Tight Swap Bays
Each lead terminates in a molded boot set at a 45 degree angle, a design choice that solves clearance challenges in confined LS swap engine bays. By guiding wires away from valve cover seams and exhaust headers, the boots prevent sharp bends that could compromise the seal or conductor integrity. The factory set eight-inch length matches common LS valve cover layouts, removing the need for trimming or aftermarket extensions and ensuring uniform performance across all cylinders. The snug fit over spark plug towers also forms a moisture resistant seal, reducing misfire risk from water intrusion or vibration. Installers benefit from a cleaner workflow, faster wiring process and a reliable under hood appearance.
For those looking for the same wires but need longer wires because these are too short, see our Extreme Race Wires 12 Inch and trust MuscleRods to deliver reliable ignition in any swap bay.