Cadillac 346ci specs: 3.90 x 3.622 in (99.1 x 92 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 346 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.900" |
| Stroke | 3.622" |
| Compression | 10.5:1 |
| Advertised power | 400 hp |
| Years | 2004–2005 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LS6 | 346 ci | 3.9" × 3.622" | 10.5:1 | 400 |
This family is represented by a single engine in the database: 346 ci, 8 cylinders, a 3.9" × 3.622" 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.