Bore, stroke, displacement and compression for all 9 Buick Buick 231ci engines. Compare variants side by side.
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Buick 231ci · 3.800" × 3.400" · 9.321:1 | 231 ci | 3.8" × 3.4" | 9.321:1 | 115–170 |
| 1985 231 110HP | 231 ci | 3.8" × 3.4" | 8.391:1 | 110 |
| 1985 231 120HP | 231 ci | 3.8" × 3.4" | 8.39:1 | 120 |
| 1985 231 200HP | 231 ci | 3.8" × 3.4" | 8.3:1 | 200 |
| Buick 231ci · 3.800" × 3.400" · 9.5:1 | 231 ci | 3.8" × 3.4" | 9.5:1 | 150 |
| 1986 231 235HP | 231 ci | 3.8" × 3.4" | 8.4:1 | 235 |
| Buick 231ci · 3.800" × 3.400" · 9.8:1 | 231 ci | 3.8" × 3.4" | 9.8:1 | 165–205 |
| 1993 231 170HP | 231 ci | 3.8" × 3.4" | 10.3:1 | 170 |
| Buick 231ci · 3.800" × 3.400" · 11.8:1 | 231 ci | 3.8" × 3.4" | 11.8:1 | 195–205 |