Cadillac LMC55R engine
| Cadillac LMC55R engine | |
|---|---|
| Overview | |
| Manufacturer | Cadillac |
| Production | 2023-present |
| Layout | |
| Configuration | 90° V8 |
| Displacement | 5.5 litres (336 cubic inches) |
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | 32-valve (four-valves per cylinder), DOHC |
| RPM range | |
| Max. engine speed | 8,800 |
| Combustion | |
| Fuel system | Gasoline direct injection |
| Management | Bosch Motronic MS7 ECU |
| Fuel type | TotalEnergies (WEC) VP Racing Fuels (IMSA) |
| Oil system | Dry sump |
| Output | |
| Power output | 670 hp (500 kW; 679 PS) |
| Dimensions | |
| Length | 25.2 in (640 mm) |
| Dry weight | 396.8 lb (180 kg) |
The Cadillac LMC55R engine is a naturally aspirated, four-stroke, 5.5-liter, V8 racing engine, made by GM Racing and Performance Center team for use in their Cadillac V-Series.R LMDh race car, since 2023.