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Nissan E16 specs: 1.6L (97 ci) 4-cylinder, 76 x 88 mm (2.9921 x 3.4646 in) bore and stroke. Rated 69 hp, 1983–1986. Used in the Nissan Sentra.
The Nissan 97ci (E16) is undersquare — the 3.4646" stroke exceeds the 2.9921" bore by 13.6% — a layout that trades peak RPM for leverage and torque low in the range. The 3.4646" stroke puts mean piston speed at 4,000 ft/min around 6,950 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 24.3 ci (397 cc).
It is one of 4 engines in the Nissan 97ci family, all of them 97 ci — the differences between them are in compression, heads and rating, not displacement. 4 factory variants share these dimensions, rated at 69 hp across 1983–1986.
| Displacement | 97 ci / 1.6 L |
|---|---|
| Bore | 2.9921" |
| Stroke | 3.4646" |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.864 |
| Fuel type | gas |
|---|---|
| Advertised HP | 69 hp |
| Years | 1983–1986 |
| Bore/stroke character | 0.864 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,465 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.3 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 |
|---|---|---|
| 1983 | 69 hp | E16 |
| 1984 | 69 hp | E16 |
| 1985 | 69 hp | E16 |
| 1986 | 69 hp | E16 |
1 factory vehicle, 1983–1988. Each year opens that model's engine table.