Volvo 154ci specs: 83 x 93.2 mm (3.2677 x 3.6693 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 154 ci |
|---|---|
| Cylinders | 5 |
| Bore | 3.268" |
| Stroke | 3.669" |
| Compression | 8.5–9.0:1 |
| Advertised power | 300 hp |
| Years | 2003–2004 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| B5254T2 | 154 ci | 3.2677" × 3.6693" | 9:1 | — |
| B5254T4 | 154 ci | 3.2677" × 3.6693" | 8.5:1 | 300 |
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.