Buick 198ci specs: 3.625 x 3.20 in (92.1 x 81.3 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 198 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.625" |
| Stroke | 3.200" |
| Compression | 8.8:1 |
| Advertised power | 135 hp |
| Years | 1962–1963 |
| Cylinder head data | 1 of 1 engines |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Buick 198ci · 3.625" × 3.2" · 8.8:1 | 198 ci | 3.625" × 3.2" | 8.8:1 | 135 |
This family is represented by a single engine in the database: 198 ci, 6 cylinders, a 3.625" × 3.2" 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.