Saturn GM High Feature specs: 3.701 x 3.37 in (94 x 85.6 mm) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings.
| Displacement | 217 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.701" |
| Stroke | 3.370" |
| Compression | 10.2–11.3:1 |
| Advertised power | 252–288 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LY7 | 217 ci | 3.7008" × 3.3701" | 10.2:1 | 252–257 |
| LLT | 217 ci | 3.7008" × 3.3701" | 11.3:1 | 288 |
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.