Jeep 161ci specs: 3.125 x 3.50 in (79.4 x 88.9 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 161 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.125" |
| Stroke | 3.500" |
| Compression | 7.6:1 |
| Advertised power | 90 hp |
| Years | 1952–1955 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| F6-161 | 161 ci | 3.125" × 3.5" | 7.6:1 | 90 |
This family is represented by a single engine in the database: 161 ci, 6 cylinders, a 3.125" × 3.5" bore and stroke.
All are undersquare — stroke larger than bore, favouring torque low in the range.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.