Isuzu 195ci specs: 93.4 x 77 mm (3.6772 x 3.0315 in) bore and stroke, shared by all 3 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 195 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.677" |
| Stroke | 3.031" |
| Compression | 9.0:1 |
| Advertised power | 175–205 hp |
| Years | 1992–2004 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 6VD1 | 195 ci | 3.6772" × 3.0315" | — | 205 |
| 6VD1 SOHC | 195 ci | 3.6772" × 3.0315" | — | 175 |
| 6VD1 DOHC | 195 ci | 3.6772" × 3.0315" | 9:1 | 190–205 |
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.