Ford 361ci specs: 4.047 x 3.50 in (102.8 x 88.9 mm) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 361 ci |
|---|---|
| Cylinders | 8 |
| Bore | 4.047" |
| Stroke | 3.500" |
| Compression | 9.6–10.5:1 |
| Advertised power | 303 hp |
| Years | 1958–1959 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| E-400 | 361 ci | 4.0469" × 3.5" | 10.5:1 | 303 |
| W | 361 ci | 4.0469" × 3.5" | 9.6:1 | 303 |
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.