The Pertronix Ignitor III kit 71281 replaces breaker points inside 1957 to 1974 Ford, Mercury, and Lincoln V8 single-point distributors with a self-contained electronic trigger. It uses adaptive dwell control, multiple sparks through the rpm range, and a built-in digital rev limiter for a hotter, more consistent spark than stock points.
- Type: Ignitor III points-to-electronic conversion kit
- Trigger: magnetic (Hall effect) with adaptive dwell
- Voltage: 12V
- Ground: negative ground
- Cylinders: 8
- Coil: designed for a 0.32 ohm coil (Flame-Thrower III or equivalent)
- Features: multiple spark, built-in digital rev limiter
- Fits: 1957-1974 Ford, Mercury, and Lincoln V8 single-point distributors (verify against the Pertronix distributor list)
- Sold as: kit
- Part number: 71281
FAQ
Which distributors does the 71281 fit?
It installs in original 1957 to 1974 Ford, Mercury, and Lincoln V8 single-point distributors. Confirm the distributor casting against the Pertronix application list before ordering.
Does the 71281 need a special coil?
Yes. The Ignitor III is built for a low-resistance coil of about 0.32 ohm, such as a Pertronix Flame-Thrower III. Running a higher-resistance stock coil reduces spark output.
Is a ballast resistor required?
No. The Ignitor III module runs on a full 12 volts and does not use the factory ballast resistor. It is wired for 12V negative ground systems.
What does the built-in rev limiter do?
The 71281 has a digital rev limiter that helps protect the engine by cutting spark at a set rpm. Multiple spark output improves combustion at lower speeds.
