Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Pertronix Flame-Thrower Black 8mm 4 Cylinder Spark Plug Wire set, model 804202. Please read this manual thoroughly before installation to ensure proper function and safety.

Image: The Pertronix Flame-Thrower Black 8mm 4 Cylinder Spark Plug Wire set, showing the four wires and their connectors.
Product Features
- Dual Current Paths: Features a primary spiral wound stainless steel alloy path and a secondary carbon impregnated fiberglass center core for enhanced reliability and redundancy.
- Low Resistance: Engineered with a low 500 ohm per foot resistance for optimal spark delivery.
- Durable Construction: Equipped with an 8mm Silicone jacket designed to resist high temperatures, moisture, oil, and various chemicals.
- Superior Insulation: Utilizes EPDM (Ethylene Propylene Diene Methylene) inner insulation to provide excellent heat resistance and prevent arcing and voltage leaks.
- Enhanced Strength: Includes a fiberglass reinforcing braid for added strength and flexibility, ensuring longevity and ease of installation.

Image: A detailed cross-section diagram illustrating the internal components of the spark plug wire, including the silicone outer jacket, fiberglass braiding, EPDM inner insulation, carbon impregnated fiberglass core, and stainless steel alloy winding.
Package Contents
The Pertronix Flame-Thrower Spark Plug Wire set, model 804202, includes:
- 4 x Pertronix Flame-Thrower Spark Plug Wires (Black, 8mm)
Installation (Setup)
Proper installation is crucial for optimal performance and safety. If you are unsure about any step, consult a qualified automotive technician.
Safety Precautions:
- Always disconnect the vehicle's battery before working on the ignition system.
- Ensure the engine is cool to the touch before beginning work.
- Wear appropriate personal protective equipment, including gloves and eye protection.
Installation Steps:
- Identify Wires: Before removing old wires, note the routing and length of each wire from the distributor cap to its corresponding spark plug. It is recommended to replace one wire at a time to avoid mix-ups.
- Remove Old Wires: Carefully grasp the spark plug boot, twist slightly, and pull to remove the old wire from the spark plug. Repeat for the distributor cap end. Do not pull on the wire itself, as this can damage the terminal.
- Compare Wires: Select a new Pertronix wire that matches the length of the old wire you just removed.
- Install New Wires: Firmly push the spark plug boot onto the spark plug until you feel or hear a click, indicating it is securely seated. Route the wire along the same path as the old wire, using any existing wire looms or clips. Connect the other end to the correct terminal on the distributor cap, ensuring a secure connection.
- Repeat: Continue this process for each spark plug wire until all old wires have been replaced with the new Pertronix Flame-Thrower wires.
- Inspect Connections: Double-check all connections at both the spark plug and distributor cap ends to ensure they are fully seated and secure.
- Reconnect Battery: Once all wires are installed, reconnect the vehicle's battery.
- Test System: Start the engine and check for smooth operation. Listen for any misfires or unusual noises.
Note: These wires are designed for custom fit applications equipped with Flame-Thrower or original GM HEI distributors. They feature factory terminated ends for a superior connection and perfect fit, eliminating the need for cutting, crimping, or splicing.
Operation
Once installed, the Pertronix Flame-Thrower Spark Plug Wires operate as a critical component of your vehicle's ignition system. They efficiently transfer high voltage from the ignition coil (via the distributor) to the spark plugs, initiating combustion in the engine cylinders.
No user interaction is required for the operation of the spark plug wires themselves after installation. Their performance is integrated into the overall function of the engine's ignition system.
Maintenance
Pertronix Flame-Thrower Spark Plug Wires are designed for durability and long life with minimal maintenance. However, periodic inspection can help ensure continued optimal performance.
Recommended Maintenance:
- Visual Inspection (Every 12,000 miles or annually):
- Check for any signs of cracking, fraying, or damage to the wire insulation.
- Inspect the boots at both the spark plug and distributor ends for tears, burns, or signs of arcing.
- Ensure all connections are secure and free from corrosion.
- Verify that wires are properly routed and not touching hot engine components or sharp edges.
- Cleaning: If wires become dirty, wipe them clean with a damp cloth. Avoid using harsh chemicals or solvents that could damage the silicone jacket.
Note: Do not attempt to repair damaged spark plug wires. Replace them immediately if any damage is found to prevent misfires or potential electrical issues.
Troubleshooting
If you experience issues with your vehicle's ignition system after installing Pertronix Flame-Thrower Spark Plug Wires, consider the following common troubleshooting steps:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Engine Misfire / Rough Idle |
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| Engine Cranks but Won't Start |
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| Check Engine Light (CEL) with Misfire Codes |
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If troubleshooting steps do not resolve the issue, it is recommended to consult a certified automotive technician.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | 804202 |
| Brand | Pertronix |
| Cable Type | Spark Plug Wire |
| Wire Diameter | 8mm |
| Resistance | Low 500 ohm per foot |
| Material | Stainless Steel, Fiberglass, Silicone, EPDM |
| Color | Black (as per model 804202) |
| Number of Cylinders | 4 |
| Product Dimensions (L x W x H) | 9.5 x 7.5 x 3.5 inches |
| Item Weight | 1.4 Pounds |
| Country of Origin | USA |
Important Notices
CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Warranty and Support
For specific warranty information and technical support regarding your Pertronix Flame-Thrower Spark Plug Wires, please refer to the official Pertronix website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
Manufacturer: Pertronix
For the most up-to-date contact information and support resources, please visit the official Pertronix website.



