Dodge 239ci specs: 3.909 x 3.311 in (99.3 x 84.1 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 239 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.909" |
| Stroke | 3.311" |
| Advertised power | 175–180 hp |
| Years | 1992–2003 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Magnum 3.9 | 239 ci | 3.9094" × 3.311" | — | 175–180 |
This family is represented by a single engine in the database: 239 ci, 6 cylinders, a 3.9094" × 3.311" bore and stroke.
All are oversquare — bore larger than stroke, which favours revs over low-end torque.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.