Saab 129ci specs: 93 x 78 mm (3.6614 x 3.0709 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 129 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.661" |
| Stroke | 3.071" |
| Compression | 10.1:1 |
| Advertised power | 140 hp |
| Years | 1991–1993 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| B212 | 129 ci | 3.6614" × 3.0709" | 10.1:1 | 140 |
This family is represented by a single engine in the database: 129 ci, 4 cylinders, a 3.6614" × 3.0709" 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.