Nash 320ci specs: 3.813 x 3.50 in (96.8 x 88.9 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 320 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.813" |
| Stroke | 3.500" |
| Advertised power | 208 hp |
| Years | 1955 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Nash 320ci (1955) | 320 ci | 3.8125" × 3.5" | — | 208 |
This family is represented by a single engine in the database: 320 ci, 8 cylinders, a 3.8125" × 3.5" 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.