6.2L Supercharged Hellcat Engine
The 6.2L Supercharged Hellcat HEMI V8 is a factory high-performance engine used in Dodge Challenger and Charger SRT Hellcat applications. It is also popular for custom muscle-car and performance engine swaps.
The standard Hellcat specification has 376 cubic inches (6,166 cc) of displacement, a 4.09-inch bore and 3.58-inch stroke, 9.5:1 compression, a cast-iron block and aluminum cylinder heads. The 2018 Hellcat specification was rated at 707 HP at 6,000 RPM and 650 lb-ft at 4,800 RPM.
Key Specifications
- Engine: 6.2L Supercharged HEMI Hellcat V8
- Displacement: 6.2L / 376 cu. in.
- Bore: 4.09″
- Stroke: 3.58″
- Configuration: 90-degree V8
- Aspiration: Supercharged
- Block: Cast iron
- Cylinder Heads: Aluminum
- Compression: 9.5:1
- Fuel System: Sequential multiport electronic injection
- Horsepower: Up to 707 HP on standard Hellcat configuration
- Torque: Up to 650 lb-ft
- Fuel: Gasoline
Common Applications
Depending on the exact engine version:
- Dodge Challenger SRT Hellcat
- Dodge Charger SRT Hellcat
- Dodge Challenger Hellcat Widebody
- Dodge Charger Hellcat Widebody
- Dodge Durango SRT Hellcat
- Custom Hellcat engine swaps
- High-performance muscle-car builds
Later versions such as Hellcat Redeye and Demon use higher-output versions of the 6.2L supercharged HEMI, so they should not be treated as identical engines.
Swap Requirements
A Hellcat engine swap may require:
- ECU/PCM
- Wiring harness
- Engine and transmission mounts
- Compatible transmission
- Fuel-system upgrades
- Cooling and intercooling systems
- Exhaust system
- Throttle and pedal components
- Driveshaft modifications
- CAN-bus/electronic integration
- Custom tuning

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