Ignition Contact Set Guide for the 1964-1974 Ford Custom 500
Keep your classic Ford's ignition firing reliably by understanding, diagnosing, and replacing your ignition points.
- The ignition contact set (points) is a normal wear item that should be replaced every 12,000-15,000 miles.
- Symptoms of failure include no-start, rough running, stalling, and power loss.
- Always replace the condenser at the same time as the points for best results.
- Setting the correct point gap with a feeler gauge (typically 0.017" for a V8) is critical for proper engine operation.
Signs of a Failing Ignition Contact Set
Ignition points are a wear item and require regular maintenance. As they wear, the electrical contacts can become pitted or burned, and the rubbing block that follows the distributor cam can wear down. This leads to several noticeable engine problems.
- Difficulty Starting or No-Start: This is one of the first and most common signs. Worn or misaligned points can't create the proper electrical signal to generate a strong spark, making the engine hard to start or preventing it from firing at all.
- Engine Misfires and Rough Running: Worn points can cause a weak or inconsistent spark, leading to incomplete combustion. This feels like a shake or stutter from the engine, especially at idle or during acceleration.
- Stalling: The engine may start but then die unexpectedly, especially at low speeds or when you come to a stop. This can happen if the points fail to deliver a consistent spark to keep the engine running at lower RPMs.
- Reduced Power and Poor Acceleration: With a weak or intermittent spark, your engine isn't burning fuel efficiently. This results in a noticeable loss of power, making the car feel sluggish or hesitant when you press the gas pedal.
Choosing the Right Aftermarket Ignition Contact Set
For a classic vehicle like the 1964-1974 Ford Custom 500, original Motorcraft points are no longer in production. The market consists of aftermarket brands that produce replacements. For this part, aftermarket quality is generally considered sufficient for normal operation, though many classic car owners have strong brand preferences based on experience.
Brand Quality & Cost
| Brand | Tier | Our Price | Notes |
|---|---|---|---|
| Standard Ignition (Blue Streak) | Premium Aftermarket | $20 - $24 | Standard Motor Products (SMP) is a well-regarded aftermarket manufacturer. Their Blue Streak line is often considered a higher-quality option. They are known for being a reliable replacement for original parts. |
| Accel | Performance Aftermarket | $18 - $22 | Accel has a long history in performance ignition parts. While some users have had good experiences, especially for street vehicles, others have reported mixed results with modern Accel products compared to their vintage reputation. For a stock engine, they are a viable option, but many purists prefer Standard. |
Pro Tip: The condenser is a critical partner to the ignition points, absorbing excess voltage to prevent the points from arcing and burning out prematurely. It is highly recommended to replace the condenser at the same time you replace the points. Most contact sets are available in a kit with a new condenser.
Known Issues for the Ford Custom 500
There are no specific recalls or Technical Service Bulletins (TSBs) from Ford or the NHTSA related to the ignition contact set for the 1964-1974 Ford Custom 500. Any issues with this system are due to the normal wear and tear of a 50+ year-old mechanical ignition system. A common issue in older Ford distributors is wear in the distributor shaft bushing, which can cause inconsistent point gap and timing. Also, the ground wire under the distributor's breaker plate can become frayed over time, causing an intermittent loss of spark.
Frequently Asked Questions
How often should I replace my ignition points?
As a general rule, ignition points and the condenser should be inspected at every oil change and replaced every 12,000 to 15,000 miles to ensure reliable performance.
Is it difficult to replace the ignition contact set myself?
For someone with basic mechanical skills, this is a very feasible DIY job. It involves removing the distributor cap and rotor, unscrewing the old points and condenser, installing the new ones, and setting the correct gap with a feeler gauge. The point gap for a Ford V8 is typically set to 0.017 inches.
What is "setting the gap"?
Setting the gap refers to adjusting the maximum distance the points open. This is a critical adjustment done with a feeler gauge. The engine must be rotated so the rubbing block on the points is on the highest point of the distributor cam lobe. An incorrect gap will alter the ignition timing and coil saturation time, leading to poor performance.
Should I upgrade to an electronic ignition?
Many owners of classic Fords choose to replace the points and condenser system with a modern electronic ignition conversion kit (like Pertronix or Accel's electronic conversion). These kits eliminate the need for regular point adjustments and can provide a more consistent spark. However, for owners wanting to maintain originality, a quality set of points and a new condenser will work just as the car was designed.
Technical Specifications
Point Gap (V8 Engines): 0.017 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.