40,000V 3 Ohm Chrome Flame-Thrower Ignition Coil - Smooth Power

In this review the Pertronix 40,000V 3 Ohm Chrome Flame-Thrower Ignition Coil is evaluated for street and light performance use where a stronger, more consistent spark is desired. The bottom line: this coil is aimed at owners converting to electronic ignition or upgrading an existing inductive distributor system who want a bigger spark gap and improved throttle response. It delivers a clearly noticeable increase in spark strength while keeping a stock-friendly chrome appearance, making it a practical choice for restorations or performance mild upgrades.

Key Features

• High output voltage: Produces up to 40,000 volts to allow a larger spark plug gap for stronger combustion and improved power delivery.
• Optimized for Ignitor kits: Engineered to work seamlessly with Pertronix Ignitor Electronic Conversion Kits for reliable electronic switching and consistent timing.
• Multiple primary resistances: Available with 1.5 or 3.0 ohm primary resistance values so it can be matched to a variety of inductive ignition systems.
• 12 Volt operation: Designed for standard 12 Volt automotive electrical systems to ensure straightforward replacement and compatibility.
• Choice of finishes: Chrome-plated finish provides a stock-looking appearance that complements engine bay aesthetics while resisting corrosion.

Who It's For

This coil is best for classic car owners, hot rodders, and anyone converting from points to electronic ignition who values a stronger, more consistent spark and wants to maintain a clean, chrome engine appearance. It is especially useful where a larger plug gap is desired to improve combustion efficiency and throttle response.

It is less suited for those who need a different physical mounting style or who require specialty coils for high-end race electronics not based on inductive distributor systems. Users relying on non-inductive or capacitor discharge ignition systems should look for coils specifically matched to those technologies.

Pros & Cons

Pros

• Provides a noticeably stronger spark and improved engine response, as many owners report enhanced spark strength and performance.
• Compatible with Pertronix Ignitor conversion kits and most inductive distributor systems for easy upgrades.
• Chrome finish keeps a stock look while offering corrosion resistance and attractive engine presentation.
• Offers flexible primary resistance choices for easier integration with different electrical setups.

Cons

• The coil is designed around inductive distributor systems and may not be ideal for non-inductive or specialized racing ignition setups.
• Chrome finish may show fingerprints or require extra cleaning to maintain showroom appearance.

Specifications

Our Verdict

The Pertronix 40,000V 3 Ohm Chrome Flame-Thrower Coil is a sensible upgrade for owners moving to electronic ignition or seeking stronger spark and smoother response without altering engine appearance. It pairs well with Ignitor conversion kits and most inductive distributors, offering good value through improved combustion and drivability for street and mild performance builds.

Frequently Asked Questions

Will this coil work with my Ignitor electronic conversion kit?
Yes, the coil is specially engineered to work with Pertronix Ignitor Electronic Conversion Kits for a plug-and-play experience.

Can I use a larger spark plug gap with this coil?
Yes, the 40,000 Volt output supports a larger plug gap which can improve combustion and throttle response when tuned correctly.

Is the chrome finish durable for an engine bay?
The chrome-plated finish resists corrosion and maintains a stock look, though it may require occasional cleaning to keep a show-ready appearance.