Bore, stroke, displacement and compression for all 14 Oldsmobile Rocket engines. Compare variants side by side.
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 455 | 455 ci | 4.1252" × 4.3" | 10.5:1 | 370 |
| 425 | 425 ci | 4.1252" × 4" | 10.25:1 | 360 |
| 403 | 403 ci | 4.1252" × 3.75" | 8:1 | 185 |
| 400 | 400 ci | 4.0598" × 3.9" | 10.5:1 | 340 |
| 400 | 400 ci | 4.06" × 3.9" | 10.5:1 | 345 |
| 400 (Small Block) | 400 ci | 4" × 4" | 10.5:1 | 325 |
| 394 | 394 ci | 4.0598" × 3.8" | 9.75:1 | 315 |
| 371 | 371 ci | 4" × 3.7" | 9.25:1 | 277 |
| 350 | 350 ci | 4" × 3.5" | 9:1 | 250 |
| 330 | 330 ci | 3.8402" × 3.6598" | 9:1 | 260 |
| 324 | 324 ci | 3.8752" × 3.5" | 8.5:1 | 185 |
| 307 | 307 ci | 3.8" × 3.35" | 8:1 | 140 |
| 303 | 303 ci | 3.75" × 3.5" | 8:1 | 135 |
| 260 | 260 ci | 3.7" × 3.0598" | 8:1 | 110 |