The Pertronix LU-181A Ignitor is a points-to-electronic ignition conversion kit for British V8 engines using the Lucas 35D8 series distributor, found on Rolls-Royce, Bentley, Aston Martin and the V8 MGB. It replaces the points and condenser with a maintenance-free magnetic-trigger module for reliable starting and a stronger spark. The kit runs on a 12-volt negative-ground system and installs inside the original distributor.
- Type: Pertronix Ignitor points-to-electronic ignition conversion kit
- Trigger: Magnetic trigger
- Voltage: 12 volt
- Ground: Negative ground
- Cylinders: 8
- Fits: Lucas 35D8 series 8-cylinder distributor (British V8)
- Sold as: Complete kit
- Part number: LU-181A
Vehicle Applications
- 1975-1976 MG MGB (V8, 3.5L/215 cu in)
- 1973 Bentley Corniche (V8, 6.8L)
- 1973 Bentley T1 Series (V8, 6.8L)
- 1966-1975 Rolls-Royce Silver Shadow (V8)
- 1971-1975 Rolls-Royce Corniche (V8)
- 1970-1971 Aston Martin DBS (V8, 5.3L)
- 1972-1973 Aston Martin V8 (V8, 5.3L)
Fits Lucas 35D8 series 8-cylinder distributors; verify against the Pertronix fitment list.
FAQ
What does the Pertronix LU-181A Ignitor kit do?
It converts the original breaker-point ignition to electronic. The Ignitor replaces the points and condenser inside the existing distributor with a self-contained magnetic-trigger module, so the engine starts more reliably, holds timing better, and needs no points to clean, gap or replace.
What does the Pertronix LU-181A fit?
It is designed for Lucas 35D8 series 8-cylinder distributor (British V8). Fitment is determined by the distributor, so check your distributor against the Pertronix fitment list before ordering.
What electrical system does the LU-181A require?
It is built for a 12 volt negative ground system. Confirm your vehicle matches this voltage and ground polarity, because Ignitor kits are voltage and ground specific.
Does the LU-181A need any maintenance or a special coil?
No routine maintenance is required once installed, and there are no points to re-gap. It works with the vehicle's existing coil or a compatible Pertronix Flame-Thrower coil that matches the system voltage.

