Hyundai Tau specs: 96 x 87 mm (3.7795 x 3.4252 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 305.1–307.5 ci |
|---|---|
| Cylinders | 8 |
| Bore | 3.780" |
| Stroke | 3.425" |
| Compression | 11.5:1 |
| Advertised power | 420–429 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| G8BE | 307.5 ci | 3.7795" × 3.4252" | 11.5:1 | 420 |
| G8BE | 305.1 ci | 3.7795" × 3.4252" | 11.5:1 | 429 |
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.