Cable Master Performance HEI Spark Plug Wires for Chevy GMC SBC 305/350 Blue — 9-Piece Kit, RFI Suppression

This blue 9-piece wire kit from Cable Master replaces worn or aged ignition wiring on compatible small-block Chevy applications that use an external HEI-style coil and distributor. The set is engineered with layered insulation, a spiral-wound nickel conductor and an aramid tensile core to control resistance, resist environmental stress, and suppress radio-frequency interference while maintaining strong ignition performance. Confirm year, engine code and distributor style before ordering to ensure exact fitment.

Which vehicles and engines will these spark plug wires fit?

These wires cover a wide selection of Chevrolet, GMC and AM General chassis built between 1987 and 1996 equipped with 5.0L (305) VIN H and 5.7L (350) VIN K small-block V8 engines using a remote-coil HEI-style distributor. They include many truck, SUV and van models, but not every variant—verify the exact vehicle specs before purchase.

• Selected Chevy/GMC models: Blazer, Jimmy, Yukon, Suburban, C/K/R/V-Series pickups
• Vans and chassis: G-Series vans, P-Series chassis, W4500 Tiltmaster
• Engine compatibility: SBC 305, 350 and custom 383 (ensure matching terminals/lengths for 383)
• Check: engine VIN code, distributor type, and number of plugs and coil lead

How are these wires constructed and what performance features do they provide?

The Cable Master kit uses a multi-layer design to balance conductivity, durability and interference suppression. An aramid core provides tensile strength, while spiral-wound nickel conductor and silicone insulation layers provide consistent spark transfer and resistance to heat, oil and vibration.

• Aramid tensile core for durability and flex resistance
• Spiral-wound nickel conductor for stable spark and low resistance
• Inner and outer silicone layers plus fiberglass reinforcement for heat and abrasion protection
• RFI suppression to reduce ignition noise affecting radios and electronics

What comes in the box and what support is included?

The kit ships as a complete 9-piece set with terminals and boots pre-installed for easier installation. Cable Master includes references to common part numbers for cross-checking and backs the set with a 3-year free replacement policy for quality-related issues.

• Includes 8 blue spark plug wires and 1 blue ignition coil wire
• Pre-fitted terminals and protective silicone boots
• Reference numbers included for cross-compatibility checks
• Cable Master 3-Year Free Replacement for qualifying defects

Who is this for: This Cable Master Performance HEI wire set is intended for DIY mechanics, restoration shops and truck or SUV owners replacing old, cracked or high-resistance ignition wires on compatible 1987–1996 SBC 305/350 vehicles or builders assembling a custom SBC 383 who will verify terminal types and lengths. If you need improved durability, clear routing and a factory-style HEI coil lead in a vivid blue finish, this kit offers an accessible, direct-fit option—but always confirm exact year, engine code and distributor configuration before ordering.