Toyota 146ci specs: 87.5 x 99.5 mm (3.4449 x 3.9173 in) bore and stroke, shared by all 3 versions. Displacement, compression and factory ratings.
| Displacement | 146 ci |
|---|---|
| Cylinders | 4 |
| Bore | 3.445" |
| Stroke | 3.917" |
| Advertised power | 228–326 hp |
| Years | 2024–2026 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| T24A-FTS | 146 ci | 3.4449" × 3.9173" | — | 228–326 |
| T24A-FTS + motor | 146 ci | 3.4449" × 3.9173" | — | 326 |
| T24A-FTS + hybrid | 146 ci | 3.4449" × 3.9173" | — | 326 |
All are undersquare — stroke larger than bore, favouring torque low in the range.
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.