MALLORY 667S Hyfire Cd Ignition Spark Discharge Box Vii

( Brand: Mallory ), ( Manufacturer Part Number: 667S ), ( Type: Ignition Box ), ( Country Of Origin: United States )

Review MALLORY Used Hyfire Viis Cd Ignition Multiple Spark Discharge Box Chevy Ford

The Mallory 667S HyFire VIIS CD Ignition Spark Discharge Box is a vital component for ensuring reliable ignition in both Chevrolet and Ford vehicles with General Motors V-8 engines. This ignition box is designed to deliver a consistent, high-voltage spark to the spark plugs, allowing for optimal combustion and efficient engine performance.

The HyFire VIIS CD Ignition Spark Discharge Box is a CD (Capacitive Discharge) design, which stores energy in a capacitor and releases it in the form of a powerful spark when needed. This design provides several advantages over traditional ignition systems, including improved ignition reliability, increased engine performance, and longer spark plug life.

- Chevrolet: Small-block V-8 engines with distributorless ignition systems (DIS)

- Ford: Modular V-8 engines (3.5L and 4.6L) and pushrod V-8 engines (5.0L, 5.4L, and 6.8L)

The HyFire VIIS CD Ignition Spark Discharge Box comes pre-set for most applications, but it can be fine-tuned using the included CD adjustment kit for optimal performance. This adjustment kit includes a spark plug gap tool, a CD adjustment tool, and a set of ignition timing advance curves.

The Mallory 667S HyFire VIIS CD Ignition Spark Discharge Box is built to last, with a rugged, cast-aluminum housing and a high-temperature ceramic insulator. The ignition box is also sealed against moisture and other environmental factors, ensuring reliable operation in various conditions.

Installing the Mallory 667S HyFire VIIS CD Ignition Spark Discharge Box is a straightforward process, with clear installation instructions provided. The ignition box is designed to fit seamlessly into your vehicle's existing ignition system, making it a hassle-free upgrade for improved engine performance and reliability.

In summary, the Mallory 667S HyFire VIIS CD Ignition Spark Discharge Box is a high-performance, reliable, and easy-to-install ignition component for Chevrolet and Ford vehicles with General Motors V-8 engines. Its CD design offers numerous advantages over traditional ignition systems, including improved ignition reliability, increased engine performance, and longer spark plug life.

The Mallory 667S Hyfire VIIS CD Ignition is a spark discharge box designed for use in automotive applications, specifically for Chevrolet and Ford vehicles with VII ignition systems. Here are some potential pros and cons of buying this product:

1. Improved Performance: This ignition box is designed to provide a more reliable and consistent spark, which can lead to improved engine performance and fuel efficiency.

2. Easy Installation: The Hyfire VIIS CD Ignition box is designed to be easy to install, and comes with clear instructions and all necessary hardware.

3. Adjustable Spark Timing: The ignition box allows for adjustable spark timing, which can help fine-tune the engine's performance and improve power output.

4. Durable Construction: The Hyfire VIIS CD Ignition box is made with high-quality materials and is designed to be durable, ensuring long-lasting performance.

1. Cost: The Mallory 667S Hyfire VIIS CD Ignition box can be more expensive than some other ignition boxes on the market.

2. Limited Compatibility: This ignition box is specifically designed for use with Chevrolet and Ford vehicles with VII ignition systems.

3. Requires Battery Power: The ignition box requires a constant power source to function, which means it will draw power from the vehicle's battery.

The Mallory 667S Hyfire VIIS CD Ignition box is a high-quality ignition solution for Chevrolet and Ford vehicles with VII ignition systems. Its ability to provide a consistent and reliable spark, adjustable spark timing, and easy installation make it an attractive option for those looking to improve their vehicle's performance. However, its cost and limited compatibility may be a drawback for some consumers.

If you own a Chevrolet or Ford vehicle with a VII ignition system and are looking to improve engine performance and reliability, the Mallory 667S Hyfire VIIS CD Ignition box is a solid choice. Its durability and adjustable spark timing make it a worthwhile investment for those who demand the best from their vehicle's ignition system. However, if cost is a concern or if your vehicle does not have a VII ignition system, there may be other, more cost-effective ignition solutions available to you.

Details:

I have now way of testing but will guarantee that this work as it should. This is part# 667S. Up for sale is a used Mallory ignition box.

part #: 667s price

• $159.00

specifications disripa:

• for makes: Chevy, Ford
• brand: Mallory
• mpn: 667s
• type: Ignition Box
• country of origin: United States

offer disripa:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: March 22, 2026

returns disripa:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

payments disripa:

• other
• wallet: Paypal
• credit card: Visa

shipping disripa:

• type: Fixed
• service: Standard
• class: Standard
• transit: 3-5 Days
• cost: $15.00

seller disripa:

• # reviews: 4507
• rating: 99.8%
• city: Leo, Indiana

general disripa:

• condition: Used
• Car Truck Parts Accessories > Ignition Systems Components > Distributors

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