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Ford Kent 1600 specs: 98 ci (1.6L) 4-cylinder, 3.187 x 3.055 in (81 x 77.6 mm) bore and stroke. Rated 54-75 hp, 1971–1973. Used in the Ford Pinto.
The Ford Kent 1600 is close to square: 3.1874" bore against 3.0551" stroke, within 4.3%, which splits the difference between a high-revving layout and a torque layout. The 3.0551" stroke does not reach 4,000 ft/min of mean piston speed until about 7,850 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 24.5 ci (401 cc).
It is one of 6 engines in the Ford 98ci family, all of them 98 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions, rated from 54 to 75 hp across 1971–1973.
| Displacement | 98 ci / 1.6 L |
|---|---|
| Bore | 3.1874" |
| Stroke | 3.0551" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 8–8.4:1 (published figures vary) |
| Bore/stroke ratio | 1.043 |
| Fuel type | gas |
|---|---|
| Advertised HP | 54–75 hp |
| Years | 1971–1973 |
| Bore/stroke character | 1.043 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,055 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.5 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 |
|---|---|---|
| 1971 | 75 hp | Kent 1600 |
| 1972 | 54 hp | Kent 1600 |
| 1973 | — | Kent 1600 |
1 factory vehicle, 1971–1973. Each year opens that model's engine table.