Toyota 281ci specs: 94 x 83 mm (3.7008 x 3.2677 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 281.2 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.701" |
| Stroke | 3.268" |
| Advertised power | 310 hp |
| Years | 2010–2019 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 1UR-FE | 281.2 ci | 3.7008" × 3.2677" | — | 310 |
This family is represented by a single engine in the database: 281.2 ci, 8 cylinders, a 3.7008" × 3.2677" bore and stroke.
All are oversquare — bore larger than stroke, which favours revs over low-end torque.
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.