Choosing the Right Spark Plugs for Your 1964 Facel Vega Facel 6
Keep your rare Facel 6 running smoothly with the correct, modern equivalent spark plugs.
- Your Facel 6 uses the same engine as an Austin-Healey 3000, making spark plug selection straightforward.
- Standard copper plugs from brands like Champion (N9YC) or Autolite (63) are the recommended, period-correct choice.
- Always set the spark plug gap to 0.025 inches before installation for optimal performance.
- Replacement is an easy DIY job that can significantly improve engine performance and reliability.
Symptoms of Failing Spark Plugs
Worn or fouled spark plugs can cause several noticeable problems in your Facel 6. Because these cars are rare and don't have modern computer systems, you must rely on what you see, hear, and feel. Common signs include:
- Rough Idle: The engine may shake or run unevenly when the car is stopped.
- Hard Starting: The engine may take longer than usual to start, or you might have to crank it several times.
- Engine Misfire: You might feel a hesitation, stumble, or loss of power during acceleration.
- Poor Acceleration: The car may feel sluggish or less responsive, especially when trying to gain speed.
- Reduced Fuel Economy: Inefficient combustion from bad plugs means you'll be using more gasoline than necessary.
Choosing the Right Aftermarket Spark Plug
Finding "OEM" spark plugs from 1964 is not a realistic goal. Instead, you will use modern, reliable aftermarket plugs that meet the original specifications for the BMC C-Series engine, which also powered the Austin-Healey 3000. For this engine, standard copper-core spark plugs are an excellent and period-correct choice, offering reliable performance.
Brand Options:
- Champion: As an original equipment brand for many British cars of the era, Champion is a historically appropriate and dependable choice. The modern equivalent for your engine is often listed as the N9YC or RN9YC.
- Autolite: Autolite offers a reliable and budget-friendly alternative that meets the engine's requirements. Cross-references indicate that Autolite part numbers 63 or 4263 are compatible replacements for the original-spec Champion plugs.
Check the Gap
No matter which brand you choose, it's critical to check the spark plug gap before installation. For a stock Facel 6 engine, the correct gap is typically 0.025 inches. A simple gapping tool is required for this quick but essential step.
Known Issues
There are no specific recalls or Technical Service Bulletins (TSBs) for spark plugs on the 1964 Facel Vega Facel 6, which is expected for a low-production classic car. Any issues you encounter will likely be related to normal wear, age, or general engine condition rather than a specific manufacturing defect with the plugs themselves. Problems like oil or fuel fouling are common in older engines and can shorten a spark plug's life.
Aftermarket Spark Plug Cost (1964 Facel Vega Facel 6)
| Brand Tier | Price Range (Per Plug) | Notes |
|---|---|---|
| Standard Copper (Recommended) | $3.50 - $5.00 | Good quality plugs from brands like Autolite and Champion fall in this range. They are reliable and appropriate for the vehicle. |
| Platinum / Iridium | $5.00 - $9.31+ | While available, these long-life plugs are generally unnecessary for a classic car like the Facel 6 and offer little benefit over standard copper plugs for this application. |
Frequently Asked Questions
How many spark plugs does my Facel 6 need?
Your 1964 Facel Vega Facel 6 has a six-cylinder engine, so you will need to purchase six spark plugs.
Is it hard to replace the spark plugs myself?
No, this is a very straightforward job on this engine. The spark plugs are easily accessible on the side of the inline-six engine. It is considered a beginner-level task that requires only basic hand tools.
Should I use anti-seize on the new spark plugs?
If you choose to use anti-seize compound, apply only a very small amount to the threads, making sure to avoid the electrode and ground strap. Be aware that the lubricant reduces friction, so you must be careful not to over-tighten the plugs.
What is the difference between Champion and Autolite plugs for my car?
Both are reputable American brands offering quality standard-type spark plugs suitable for your vehicle. Champion was a common original equipment supplier for British engines of the period, making it a popular choice for maintaining authenticity. Autolite is a widely available and cost-effective alternative that performs just as well. The choice between them often comes down to brand preference.
Technical Specifications
Engine: 2.9L BMC C-Series Inline-6 Spark Plug Quantity: 6 Recommended Aftermarket Plugs: Champion N9YC, Autolite 63, NGK BP6ES Standard Gap: 0.025 inches
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.