Pontiac 204ci specs: 3.70 x 3.16 in (94 x 80.3 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 204 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.700" |
| Stroke | 3.160" |
| Compression | 9.0:1 |
| Advertised power | 160 hp |
| Years | 1992–1993 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LG7 | 204 ci | 3.7" × 3.16" | 9:1 | 160 |
This family is represented by a single engine in the database: 204 ci, 6 cylinders, a 3.7" × 3.16" 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.