The Mercedes-AMG M177 and M178 4.0L V8 Biturbo engines represent the evolution of AMG’s legendary V8 performance, replacing earlier engines like the M157 and M278 with a more compact, efficient, and powerful design.
Built with a 4.0-liter (3982 cc) displacement, these engines feature a “hot-V” configuration, where twin turbochargers are mounted between the cylinder banks. This innovative layout improves airflow, reduces turbo lag, and enhances overall engine responsiveness, delivering instant power when you need it most.
The M177 is widely used across AMG performance sedans and SUVs such as the C63, E63, and S63. It typically uses a wet-sump lubrication system, making it ideal for road-going performance vehicles with a balance of comfort and power.
The M178, on the other hand, is a more track-focused variant designed for models like the AMG GT. It features a dry-sump lubrication system, allowing lower engine placement for improved handling and stability during high-performance driving.
Power outputs vary by model and tuning, ranging from approximately 456 hp to over 700 hp, with torque figures reaching up to 800 Nm or more in high-performance variants. These engines are also handcrafted under AMG’s “one man, one engine” philosophy, ensuring exceptional build quality and precision engineering.
Constructed with a lightweight aluminum block, DOHC 32-valve configuration, and direct fuel injection, the M177 and M178 engines deliver an impressive balance of power, efficiency, and durability. Their widespread use across AMG vehicles and even performance brands like Aston Martin highlights their reliability and versatility.
Whether you are replacing a high-performance engine or upgrading your vehicle, the M177/M178 platform offers cutting-edge AMG technology and world-class performance.
Key Features
- 4.0L V8 twin-turbocharged AMG engine
- “Hot-V” turbocharger configuration for faster response
- Handcrafted under AMG “One Man, One Engine” philosophy
- M177 (wet sump) for road performance
- M178 (dry sump) for track-focused applications
- Lightweight aluminum construction
- High-performance direct fuel injection system
Engine Specifications
- Engine Type: V8 Biturbo
- Displacement: 4.0L (3982 cc)
- Power Output: 456 – 700+ hp
- Torque: 600 – 800+ Nm
- Fuel System: Direct Injection
- Turbocharger: Twin-Turbo (Hot-V configuration)
- Configuration: DOHC, 32-Valve
- Production Years: 2014 – Present
Why Choose the M177 / M178 Engine?
The M177 and M178 engines deliver modern AMG performance at its finest, combining compact design, extreme power output, and advanced engineering innovations. Whether for luxury performance vehicles or track-focused builds, these engines provide exceptional reliability, strong aftermarket support, and unmatched driving dynamics.
Order Information
This engine is listed as an inquiry-only product on Engines & Parts.
Click “Place Order” to:
- Confirm availability
- Request engine condition (used, rebuilt, or new)
- Get pricing and shipping details
Upgrade your vehicle with the cutting-edge Mercedes-AMG M177 / M178 4.0L V8 Biturbo engine—engineered for power, precision, and performance excellence.
Reviews
There are no reviews yet.