Oldsmobile 394ci specs: 4.124 x 3.688 in (104.7 x 93.7 mm) bore and stroke. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 394 ci |
|---|---|
| Cylinders | 8 |
| Bore | 4.124" |
| Stroke | 3.688" |
| Compression | 10.3:1 |
| Advertised power | 280 hp |
| Years | 1964 |
| Cylinder head data | 1 of 1 engines |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Oldsmobile 394ci · 4.124" × 3.688" · 10.25:1 | 394 ci | 4.124" × 3.688" | 10.25:1 | 280 |
This family is represented by a single engine in the database: 394 ci, 8 cylinders, a 4.124" × 3.688" 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.