Volvo 130ci specs: 92 x 80 mm (3.6220 x 3.1496 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 130 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.622" |
| Stroke | 3.150" |
| Compression | 7.5–9.3:1 |
| Advertised power | 107–127 hp |
| Years | 1976–1985 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| B21F | 130 ci | 3.622" × 3.1496" | 9.3:1 | 107 |
| B21FT | 130 ci | 3.622" × 3.1496" | 7.5:1 | 127 |
Compression spans 7.5:1 to 9.3:1, so fuel requirements differ meaningfully between members — worth checking before assuming parts interchange.
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.