The Pertronix 1581LS Ignitor is a points-to-electronic ignition conversion kit that installs inside the original distributor and replaces the breaker points and condenser with a maintenance-free magnetic trigger. The result is a stronger, more consistent spark, easier starting, and no points to wear or adjust. It runs on 12-volt, negative ground systems and fits the Autolite and Prestolite 8-cylinder distributors. This kit is matched by distributor model, so compare the numbers on the original distributor against the Pertronix fitment list before ordering.
- Type: Points-to-electronic ignition conversion (Ignitor)
- Trigger: Magnetic trigger, no breaker points or condenser
- Voltage and ground: 12-volt, negative ground
- Cylinders: 8-cylinder
- Fits: the Autolite and Prestolite 8-cylinder distributors
- Sold as: Complete conversion kit
- Part number: 1581LS
FAQ
What does the Pertronix 1581LS Ignitor kit do?
It converts a breaker-point ignition to electronic. The kit installs inside the original distributor and replaces the points and condenser with a magnetic trigger, so the ignition fires more consistently and needs no periodic point adjustment.
How do I confirm the 1581LS fits my engine?
The 1581LS is matched by distributor model. Compare the numbers stamped on the original distributor against the Pertronix fitment list, since the same engine can appear with more than one distributor.
Does the 1581LS require a specific voltage and ground?
Yes. It is built for 12-volt, negative ground systems. Installing it on the wrong voltage or ground polarity can damage the module, so confirm the vehicle's setup first.
Do the breaker points stay in the distributor?
No. The Ignitor replaces the points and condenser completely. Nothing from the breaker-point system stays in service after the conversion, and a matching ignition coil is recommended.
