Pertronix Flame-Thrower 40001 Ignition Coil — 12V 40,000V 1.5Ω Canister, Chrome or Black for Improved Spark and Starting

The Pertronix Flame-Thrower 40001 is a 12V, 40,000-volt canister ignition coil with a 1.5 ohm primary designed to deliver a stronger, more consistent spark for distributor-based ignition systems.

Built to improve ignition energy without sacrificing a classic look, the Flame-Thrower coil pairs especially well with Pertronix Ignitor electronic conversion kits but also upgrades conventional inductive distributor systems. Available in chrome-plated or black finishes, this compact canister coil supports larger spark gaps and aims to enhance throttle response, starting reliability, and combustion efficiency across a wide range of gasoline engines.

How does the Flame-Thrower coil improve spark and engine response?

The coil produces up to 40,000 volts on the secondary, which allows for a wider spark plug gap and a more robust spark at the plug. That stronger spark increases the likelihood of complete combustion, helping deliver smoother throttle transitions and quicker starts.

• High secondary voltage (40,000V) for larger plug gaps
• Stronger, more consistent spark across RPM range
• Improved ignition of leaner mixtures and marginal conditions

Will this coil work with my electronic Ignitor conversion or stock distributor?

The 40001 is engineered to integrate seamlessly with Pertronix Ignitor kits and is also compatible with many inductive distributor setups. Its 1.5 ohm primary resistance matches a wide array of systems, but Pertronix offers alternative primary resistances if your application requires another value.

• Designed specifically for Pertronix Ignitor electronic conversions
• Also suitable for most distributor-type inductive ignition systems
• Available in multiple primary resistance options for proper matching

How difficult is installation and what do I need to know?

Installation is straightforward for anyone familiar with distributor work: swap the canister coil, connect the primary leads, and secure the high-tension terminal to the distributor cap. Basic hand tools are typically sufficient; follow vehicle and Pertronix kit instructions for correct wiring and mounting orientation to avoid coil overheating or misfires.

• Simple bolt-in replacement for many stock coils
• Requires correct primary resistance match when changing systems
• Compatible with either chrome or black engine aesthetics

What performance benefits can I realistically expect?

Upgrading to the Flame-Thrower often yields perceptible improvements in cold starts, throttle response, and idle stability, especially on older or modified engines with higher compression or ignition timing. While results vary by vehicle and tune, the stronger spark supports more complete combustion and can help maintain consistent performance under varied driving conditions.

• Better cold and hot starting reliability
• Smoother throttle response and idle quality
• Potential for slight fuel-efficiency gains from improved combustion

Who is this for? The Pertronix Flame-Thrower 40001 suits enthusiasts and mechanics upgrading distributor-based ignition systems who want a robust, higher-voltage coil that preserves a stock appearance. It’s a good choice for restorations, mild performance builds, and anyone converting to electronic points-free ignition using Pertronix Ignitor kits. If you need a coil that balances classic styling with modern ignition energy—and you require a 1.5 ohm primary for compatibility—this model offers an easy, effective upgrade. For custom or high-performance builds, review primary resistance options to ensure optimal matching with your ignition module or electronic conversion kit.