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Nissan CD17 specs: 1.7L (103 ci) 4-cylinder, 80 x 83.6 mm (3.1496 x 3.2913 in) bore and stroke. Built 1984–1986. Used in the Nissan Sentra.
The Nissan CD17 is close to square: 3.1496" bore against 3.2913" stroke, within 4.3%, which splits the difference between a high-revving layout and a torque layout. The 3.2913" stroke does not reach 4,000 ft/min of mean piston speed until about 7,300 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 25.8 ci (422 cc).
3 factory variants share these dimensions across 1984–1986.
| Displacement | 103 ci / 1.7 L |
|---|---|
| Bore | 3.1496" * |
| Stroke | 3.2913" * |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.957 |
* Bore and stroke from a single source; not yet cross-verified.
| Fuel type | diesel |
|---|---|
| Years | 1984–1986 |
| Bore/stroke character | 0.957 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,291 ft/min — conservative for a street engine |
| Displacement per cylinder | 25.8 ci |
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 |
|---|---|---|
| 1984 | — | CD17 |
| 1985 | — | CD17 |
| 1986 | — | CD17 |
1 factory vehicle, 1984–1986. Each year opens that model's engine table.