1978-86 8 Cylinder Spark Plug Wires

Spark plug wires are a major component in the vehicles ignition system.

Electrical failure can be greatly hastened by loose connections at the ignition coil(s), distributor or spark plugs causing telltale corrosion at connectors. Over time th is loosening can develop from quality variations in the wires themselves or through normal engine vibration.

Other causes include retainer failure, fluid leakage onto the wires causing the wires to swell and soften, or even poor original routing (too close to exhaust components or components with sharp edges).

When these conditions exist they may or may not cause a noticeable misfire, the wires must be replaced immediately or they will wreak havoc on other components such as ignitionc oils and nearby electronics or exhaust system components such as oxygen sensors and catalytic converters.

Applications:

• 1981-86 all except 1985-86 5.0-F

• 1982-86 5.0

• 1982 5.7L 350-K, propane
• 1975-81 5.0L 305, 5.7L 350
• 1984 5.7L 350-K, propane
• 1984 5.0L 305-F
• 1984-85 5.7L 350-L
• 1983- 85 5.7L 350-M

• 1980 350
• 1980-82 267
• 1981-86 305, 350