Gibson GK428 engine
| Gibson GK428 | |
|---|---|
| Overview | |
| Manufacturer | Gibson |
| Production | 2017–present |
| Layout | |
| Configuration | Naturally-aspirated 90° V8 |
| Displacement | 4.2 L (256 cu in) |
| Valvetrain | DOHC |
| Combustion | |
| Fuel system | Electronic indirect multi-point injection |
| Management | Cosworth |
| Fuel type | |
| Output | |
| Power output | 603 hp (450 kW) |
| Torque output | 410 lb⋅ft (556 N⋅m) |
| Dimensions | |
| Dry weight | 135 kg (298 lb) |
| Chronology | |
| Predecessor | Zytek ZG348 |
| Successor | Gibson GL458 |
The Gibson GK428 engine is a 4.2-litre normally-aspirated DOHC V8 engine. It has been developed and produced by Gibson Technology for sports car racing since 2017.