The Pertronix Ignitor II Electronic Ignition Conversion Kit (91281) converts breaker points to electronic ignition by installing the Ignitor II module into Motorcraft single-point 8-cylinder distributors used on 1957-1974 Ford, Lincoln and Mercury V8 engines. The Ignitor II adds adaptive dwell control that adjusts spark energy across the entire RPM range for stronger spark and easier starting. The module mounts inside the original distributor, so the factory appearance is retained and no external ignition box is required.
This is a distributor-based kit. Fitment is determined by the distributor family listed below rather than by a single vehicle range, so confirm the kit against the distributor on the engine before ordering.
- Type: Points-to-electronic conversion kit (Ignitor II)
- Trigger: Magnetic (Hall effect)
- Voltage: 12V
- Ground: Negative
- Cylinders: 8
- Coil: compatible with low-resistance coils down to 0.6 ohms
- Adaptive dwell: Yes
- Fits: Motorcraft (Ford) single-point 8-cylinder distributors (1957-1974 Ford, Lincoln and Mercury V8)
- Sold as: complete conversion kit
- Part number: 91281
FAQ
What does the Pertronix 91281 kit fit?
It fits Motorcraft (Ford) single-point 8-cylinder distributors (1957-1974 Ford, Lincoln and Mercury V8). Fitment is based on the distributor, so match the kit to the distributor on the engine rather than to a single model year.
What ignition coil does it need?
It runs on a 12V negative-ground system and supports low-resistance coils down to 0.6 ohms thanks to adaptive dwell control.
Does it replace the points and condenser?
Yes. The module replaces the breaker points and condenser inside the distributor for a maintenance-free electronic ignition.
Is an external ignition box required?
No. The module fits inside the original distributor and needs no external box, so the engine keeps its factory look.
