See other engines in this family
Lincoln Windsor 5.0 specs: 302 ci (5.0L) 8-cylinder, 4.00 x 3.00 in (101.6 x 76.2 mm) bore and stroke, 8.4:1 compression. Built 1981–1985.
The Lincoln Windsor 5.0 is oversquare — the 4" bore exceeds the 3" stroke by 33.3% — a layout that favors airflow and RPM over leverage at the crank. The 3" stroke does not reach 4,000 ft/min of mean piston speed until about 8,000 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. A rod ratio of 1.697 is in the range most production engines fall in. Each of the 8 cylinders displaces 37.8 ci (619 cc).
8.4:1 on iron heads is low by modern standards and generally happy on regular pump fuel.
It is one of 9 engines in the Windsor family, the smallest at 302 ci. 5 factory variants share these dimensions across 1981–1985.
| Displacement | 302 ci / 5 L |
|---|---|
| Bore | 4" |
| Stroke | 3" |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 8.4:1 * |
| Rod length | 5.09" |
| Rod ratio | 1.697 |
| Bore/stroke ratio | 1.333 |
* Compression ratio from a single source; not yet cross-verified.
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | gas |
| Years | 1981–1985 |
| Bore/stroke character | 1.333 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,000 ft/min — conservative for a street engine |
| Rod ratio | 1.697 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 37.8 ci |
| Static compression | 8.4:1 — low by modern standards, generally happy on regular pump fuel |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 1981 | — | Windsor 5.0 |
| 1982 | — | Windsor 5.0 |
| 1983 | — | Windsor 5.0 |
| 1984 | — | Windsor 5.0 |
| 1985 | — | Windsor 5.0 |
4 factory vehicles, 1979–1991. Each year opens that model's engine table.