Reliability is just as important as performance in marine applications and MSDs 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. Two wires are offered; the economical upgrade Heli-Core wires and the premier 8.5mm Super Conductor wire. Both are offered in custom sets for Chevrolet Marine applications.

MSD Custom Spark Plug Wire Set 31489 Red Super Conductor 8.5mm - Marine HEI Cap - Big Block Chevy

Resistance Less Than 50 Ohms/ft. For Superior Spark

Extra Hvy Glass Braid; Strong Dielectric Insulator

Helically Wound Copper Alloy Conductor

40 Feet Of Conductor Wound In One Foot Of Wire

8.5mm Jacket Protects From High Heat Or Abrasion

Silicone And Synthetic Heat Resistant Boot

Ferro-Magnetic Impregnated Core Creates EMI Choke

Core Made w/DuPont Kevlar To Add Tensile Strength

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. Features:Custom fit for make and model listed.Wires are precut to exact specificationsBolt-on performance

Wires are precut to exact specifications

Bolt-on performance

Product Description:

Spark Plug Wire Set

Super Conductor

Spiral Core

8.5 mm

Red

90 Degree Plug Boots

HEI Style Terminal

Marine

Big Block Chevy

Kit

Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you need to meet your performance goals. We continue to innovate and invent components and technology that deliver performance and reliability with products that are easy to use and install. Over the course of 40-plus years, MSD Performance has been driving the development of innovative components that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in motorsports. MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. The line of MSD 6-Series Ignitions are the most popular aftermarket ignitions in the world due to our race-proven performance on the track and our reliability on the street! Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power and endurance. Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value.