Toyota 1JZ specs: 86 x 71.5 mm (3.3858 x 2.8150 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 152.3 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.386" |
| Stroke | 2.815" |
| Compression | 9.0–10.0:1 |
| Advertised power | 180–280 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 1JZ · 3.386" × 2.815" · 10:1 | 152.3 ci | 3.3858" × 2.815" | 10:1 | 180–200 |
| GTE Vvti | 152.3 ci | 3.3858" × 2.815" | 9:1 | 280 |
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.