Dodge 325ci specs: 3.688 x 3.80 in (93.7 x 96.5 mm) bore and stroke, shared by all 4 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 325 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.688" |
| Stroke | 3.800" |
| Compression | 8.5–9.3:1 |
| Advertised power | 245–310 hp |
| Years | 1957–1958 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 1957 325 245HP | 325 ci | 3.6875" × 3.8" | 8.5:1 | 245 |
| Dodge 325ci · 3.688" × 3.800" · 9.25:1 | 325 ci | 3.6875" × 3.8" | 9.25:1 | 285–310 |
| 1958 325 265HP | 325 ci | 3.6875" × 3.8" | 9:1 | 265 |
| Dodge 325ci (1957–1958) | 325 ci | 3.6875" × 3.8" | — | 252–260 |
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.