Buick 152ci specs: 3.46 x 4.04 in (87.9 x 102.6 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 152 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.460" |
| Stroke | 4.040" |
| Advertised power | 328 hp |
| Years | 2025–2026 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LK0 | 152 ci | 3.46" × 4.04" * | — | 328 |
This family is represented by a single engine in the database: 152 ci, 4 cylinders, a 3.46" × 4.04" 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.