Bore, stroke, displacement and compression for all 8 GMC Small Block Chevy engines. Compare variants side by side.
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 400 | 400 ci | 4.1248" × 3.7598" | 8:1 | 150 |
| 350 | 350 ci | 4" × 3.4799" | 9:1 | 160 |
| 327 | 327 ci | 4" × 3.25" | 10.5:1 | 250 |
| 307 | 307 ci | 3.8748" × 3.25" | 9:1 | 200 |
| 305 | 305 ci | 3.75" × 3.4799" | 8.5:1 | 130 |
| 302 | 302 ci | 4" × 3" | 11:1 | 290 |
| 283 | 283 ci | 3.8748" × 3" | 8.5:1 | 185 |
| 265 | 265 ci | 3.75" × 3" | 8:1 | 162 |