Edelbrock Ultra Spark 50 Plug Wire Set — 12.5in Black, 50Ω/ft with Metal Sleeves and 8.5mm Silicone

The Edelbrock 22716 Ultra Spark 50 plug wire set is a high-performance, low-resistance ignition wire kit built to deliver maximum voltage and superior EMI/RFI suppression for upgraded engines.

These Ultra Spark 50 wires are designed for performance applications where every bit of ignition energy matters. Constructed with a Kevlar spiral-wound core protected by an 8.5 mm silicone jacket and finished with metal sleeves, the set balances durability, heat resistance, and electrical performance. With approximately 50 ohms of resistance per foot, this kit aims to reduce interference while letting more voltage reach the spark plugs compared with higher-resistance replacement wires.

How do these wires improve ignition on performance engines?

The Ultra Spark 50 wires reduce internal resistance so more of the coil’s voltage reaches the plug tip, which helps maintain stronger sparks under load. Their design also limits EMI/RFI noise that can interfere with sensors or radios in modern vehicles.

• Low ~50 ohms per foot wire core for greater voltage transfer
• High EMI/RFI suppression to minimize electrical interference
• Keeps spark energy consistent during high RPM or heavy load

What construction features protect the wires from heat and wear?

Each lead uses a spiral-wound Kevlar core for mechanical strength and is sealed inside a thick silicone jacket that resists heat, oil, and chemicals. Metal sleeves at the boots improve grounding, secure connections, and help the wires withstand engine-bay conditions.

• 8.5 mm heavy-duty silicone jacket for heat and moisture resistance
• Kevlar spiral-wound core for tensile strength and longevity
• Metal sleeve-equipped boots for reliable terminal contact and durability

Are these wires compatible with my vehicle and performance upgrades?

The set is intended for GM LS truck and similar performance engines but can suit many high-output ignition systems that require low-resistance leads. Check the length and boot style to confirm fitment for your specific engine and routing needs.

• Designed for GM LS Truck applications and many high-performance platforms
• 12.5" length (verify routing and cylinder placement before install)
• Works best with aftermarket ignition upgrades that demand higher voltage delivery

How easy is installation and what maintenance is recommended?

Installation follows standard plug wire replacement steps: route wires to avoid headers and hot components, attach boots securely, and maintain proper firing order. Periodic inspection for cracked boots or damaged jackets will help preserve performance.

• Replace one wire at a time to keep firing order correct
• Route away from exhaust headers and hot surfaces to prevent premature wear
• Inspect boots and jackets for damage during regular maintenance intervals

Who this is for: The Edelbrock Ultra Spark 50 wire set is aimed at enthusiasts and builders with modified or performance-oriented GM LS and similar engines who want increased spark energy and reduced electrical interference. Choose this kit if you run aftermarket ignition components, push higher boost or RPMs, or simply want a durable upgrade from OEM wires for better ignition consistency and reliability in demanding driving conditions.