Dodge 270ci specs: 3.625 x 3.25 in (92.1 x 82.6 mm) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 270 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.625" |
| Stroke | 3.250" |
| Compression | 7.6–8.0:1 |
| Advertised power | 175–193 hp |
| Years | 1955–1956 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Dodge 270ci · 3.625" × 3.250" · 7.6:1 | 270 ci | 3.625" × 3.25" | 7.6:1 | 175–193 |
| 1956 270 189HP | 270 ci | 3.625" × 3.25" | 8:1 | 189 |
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.