Bore, stroke, displacement and compression for all 5 Ram Magnum engines. Compare variants side by side.
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Magnum · 4.000" × 3.882" · 8.4:1 | 488 ci | 4" × 3.8819" | 8.4:1 | 300–310 |
| Magnum · 4.000" × 3.598" · 9.1:1 | 360 ci | 4" × 3.5984" | 9.1:1 | 245 |
| Magnum · 3.909" × 3.311" · 9.1:1 | 318 ci | 3.9094" × 3.311" | 9.1:1 | 230 |
| Magnum · 3.909" × 3.311" · 9.1:1 | 239 ci | 3.9094" × 3.311" | 9.1:1 | 175 |
| 37 Magnum | 226 ci | 3.6614" × 3.5748" | 9.7:1 | 215 |