Ford 140ci specs: 3.781 x 3.126 in (96 x 79.4 mm) bore and stroke, shared by all 16 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 140 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.781" |
| Stroke | 3.126" |
| Compression | 8.0–9.8:1 |
| Advertised power | 82–200 hp |
| Years | 1974–1997 |
| Cylinder head data | 8 of 16 engines |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Ford 140ci · 3.781" × 3.126" · 8.882:1 | 140 ci | 3.781" × 3.126" | 8.882:1 | 82–88 |
| 1976 140 92HP | 140 ci | 3.781" × 3.126" | 9.532:1 | 92 |
| 1977 140 88HP | 140 ci | 3.781" × 3.126" | 9.85:1 | 88 |
| Ford 140ci · 3.781" × 3.126" · 9.512:1 | 140 ci | 3.781" × 3.126" | 9.512:1 | 86–88 |
| 1979 140 120HP | 140 ci | 3.781" × 3.126" | 9.32:1 | 120 |
| 1980 140 100HP | 140 ci | 3.781" × 3.126" | 9.322:1 | 100 |
| Ford 140ci · 3.781" × 3.126" · 8:1 | 140 ci | 3.781" × 3.126" | 8:1 | 145–190 |
| Ford 140ci · 3.781" × 3.126" · 9:1 | 140 ci | 3.781" × 3.126" | 9:1 | 86–100 |
| Ford 140ci · 3.781" × 3.126" · 8.4:1 | 140 ci | 3.781" × 3.126" | 8.4:1 | 145–175 |
| Ford 140ci · 3.781" × 3.126" · 9.2:1 | 140 ci | 3.781" × 3.126" | 9.2:1 | 105 |
| W-code | 140 ci | 3.781" × 3.126" | — | 132–200 |
| A-code | 140 ci | 3.781" × 3.126" | — | 88–90 |
| T-code | 140 ci | 3.781" × 3.126" | — | 175 |
| S-code | 140 ci | 3.781" × 3.126" | — | 105 |
| Lima I4 | 140 ci | 3.781" × 3.126" | — | 90–112 |
| Ford 140ci (1984–1986) | 140 ci | 3.781" × 3.126" | — | 145–155 |
Compression spans 8:1 to 9.85:1, so fuel requirements differ meaningfully between members — worth checking before assuming parts interchange.
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.