Jaguar 326ci specs: 90 x 70 mm (3.5430 x 2.7560 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 326 ci |
|---|---|
| Cylinders | 12 |
| Bore | 3.543" |
| Stroke | 2.756" |
| Years | 1971–1974 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| V12 5.3 | 326 ci | 3.543" × 2.756" | — | — |
This family is represented by a single engine in the database: 326 ci, 12 cylinders, a 3.543" × 2.756" 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.