Bore, stroke, displacement and compression for all 5 Chevrolet Duramax engines. Compare variants side by side.
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Duramax · 4.055" × 3.898" · 17.5:1 | 403 ci | 4.0551" × 3.8976" | 17.5:1 | 300–310 |
| Duramax · 4.055" × 3.898" · 16.8:1 | 403 ci | 4.0551" × 3.8976" | 16.8:1 | 360–365 |
| Duramax · 4.055" × 3.898" · 16:1 | 403 ci | 4.0551" × 3.8976" | 16:1 | 397–445 |
| Duramax · 3.307" × 3.543" · 15:1 | 183 ci | 3.3071" × 3.5433" | 15:1 | 277–305 |
| LWQ | 170 ci | 3.622" × 4.1339" | 16.5:1 | 181 |