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Ford CVH 1.6 EFI specs: 98 ci (1.6L) 4-cylinder, 3.15 x 3.13 in (80 x 79.5 mm) bore and stroke, 9.5:1 compression. Rated 88 hp, 1983–1985.
The Ford CVH 1.6 EFI is close to square: 3.1496" bore against 3.1299" stroke, within 0.6%, which splits the difference between a high-revving layout and a torque layout. The 3.1299" stroke does not reach 4,000 ft/min of mean piston speed until about 7,650 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 24.5 ci (401 cc).
9.5:1 is in the range that usually runs on pump premium.
It is one of 6 engines in the Ford 98ci family, all of them 98 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions, rated at 88 hp across 1983–1985.
| Displacement | 98 ci / 1.6 L |
|---|---|
| Bore | 3.1496" |
| Stroke | 3.1299" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 9.5:1 * |
| Bore/stroke ratio | 1.006 |
* Compression ratio from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Advertised HP | 88 hp |
| Years | 1983–1985 |
| Bore/stroke character | 1.006 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,130 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.5 ci |
| Static compression | 9.5:1 — in the range that usually runs on pump premium |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 1983 | 88 hp | CVH 1.6 EFI |
| 1984 | — | CVH 1.6 EFI |
| 1985 | — | CVH 1.6 EFI |
1 factory vehicle, 1983–1985. Each year opens that model's engine table.