A 5.7L Hemi engine is approximately 345 cubic inches.
The 5.7-liter Hemi V8 engine, commonly found in Dodge and Chrysler vehicles, displaces 345 cubic inches. This measurement comes from converting liters to cubic inches (1 liter ≈ 61.024 cubic inches). The "Hemi" name refers to the engine's hemispherical combustion chambers, a design that enhances airflow and combustion efficiency. This engine produces between 370-395 horsepower depending on the specific vehicle application.
Common 5.7L Hemi Applications
- Dodge Challenger R/T and SRT8
- Dodge Charger R/T and SRT8
- Chrysler 300C and 300S
- Dodge Durango R/T
- Jeep Grand Cherokee SRT8
5.7L Hemi vs Other Hemi Sizes
| Engine Size | Cubic Inches | Common Applications |
|---|---|---|
| 5.7L Hemi | 345 | Challenger, Charger, 300C |
| 6.1L Hemi | 370 | SRT8 models, Magnum SRT8 |
| 6.4L Hemi | 392 | Scat Pack, SRT models |
Key Features of the 5.7L Hemi
- Multi-Displacement System (MDS) for improved fuel economy
- Variable valve timing for optimized performance
- Two spark plugs per cylinder for complete combustion
- Forged steel crankshaft for durability
Performance Specifications
- Torque: 395-410 lb-ft
- Compression ratio: 10.5:1
- Fuel system: Sequential multi-port fuel injection
- Recommended fuel: 89 octane