Mazda 78ci specs: 73 x 76 mm (2.8740 x 2.9921 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 78 ci |
|---|---|
| Cylinders | 4 |
| Bore | 2.874" |
| Stroke | 2.992" |
| Advertised power | 52 hp |
| Years | 1977 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| TC | 78 ci | 2.874" × 2.9921" | — | 52 |
This family is represented by a single engine in the database: 78 ci, 4 cylinders, a 2.874" × 2.9921" bore and stroke.
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.