The Pertronix 1185LS Ignitor kit converts the Delco 8-cylinder distributor on the early Buick Nailhead V8 to electronic ignition using a lobe-sensor trigger that needs no magnet sleeve. It installs inside the stock distributor, runs on a 12 volt negative ground system, and delivers a stronger, more reliable spark than points. Fitment covers the 1951-1956 Buick V8 models listed below.
- Type: Ignitor points-to-electronic ignition conversion
- Trigger: Lobe sensor (Hall effect)
- Voltage: 12 volt
- Ground: negative ground
- Cylinders: 8
- Recommended coil: 1.5 ohm
- Fits: Original Delco 8-cylinder distributors (Buick Nailhead)
- Sold as: Complete conversion kit
- Part number: 1185LS
Vehicle Applications
- 1954-1956 Buick Century (322ci / 5.3L V8)
- 1953-1956 Buick Roadmaster (322ci / 5.3L V8)
- 1954 Buick Skylark (322ci / 5.3L V8)
- 1951-1953 Buick Special (263ci / 4.3L L8)
- 1954-1955 Buick Special (264ci / 4.3L V8)
- 1956 Buick Special (322ci / 5.3L V8)
- 1951-1952 Buick Super (4.3L L8)
- 1953-1956 Buick Super (322ci / 5.3L V8)
FAQ
Which Buick engines does the 1185LS fit?
It fits 1951-1956 Buick Century, Roadmaster, Skylark, Special and Super models with the original Delco 8-cylinder distributor, including the 263, 264 and 322 cubic inch engines.
Does the 1185LS need a magnet sleeve?
No. It is a lobe-sensor kit that triggers off the distributor cam, so no magnet sleeve is required.
What coil is recommended for the 1185LS?
A 1.5 ohm coil on a 12 volt negative ground system is recommended.
Is the conversion hidden?
Yes. The module installs under the distributor cap, keeping the stock appearance of the Nailhead.
