Bore, stroke, displacement and compression for all 6 Ford 98ci engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 98 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.150–3.187" |
| Stroke | 3.055–3.130" |
| Compression | 8.0–9.5:1 |
| Advertised power | 54–120 hp |
| Years | 1971–1985 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| Kent Crossflow 1.6 | 98 ci | 3.1874" × 3.0551" | — | — |
| CVH 1.6 2V | 98 ci | 3.1496" × 3.1299" | 8.8:1 | 65–70 |
| CVH 1.6 HO | 98 ci | 3.1496" × 3.1299" | — | — |
| CVH 1.6 EFI | 98 ci | 3.1496" × 3.1299" | 9.5:1 | 88 |
| CVH 1.6 Turbo | 98 ci | 3.1496" × 3.1299" | 8:1 | 120 |
| Kent 1600 | 98 ci | 3.1874" × 3.0551" | — | 54–75 |
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
Compression spans 8:1 to 9.5:1, so fuel requirements differ meaningfully between members — worth checking before assuming parts interchange.
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.