Mazda 159ci specs: 92 x 98 mm (3.6220 x 3.8583 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 159 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.622" |
| Stroke | 3.858" |
| Compression | 8.4:1 |
| Advertised power | 121 hp |
| Years | 1989–1993 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| G6 | 159 ci | 3.622" × 3.8583" | 8.4:1 | 121 |
This family is represented by a single engine in the database: 159 ci, 4 cylinders, a 3.622" × 3.8583" bore and stroke.
All are undersquare — stroke larger than bore, favouring torque low in the range.
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.