Description
Maximize the performance of your Mercedes-AMG M178 engine with PTG CNC Ported Heads, designed for extreme airflow and power potential. Precision 5-axis CNC-machined and fully blueprinted, these ported heads improve flow efficiency by 24%+ CFM at .550” lift, making them a must-have upgrade for high-performance builds. Whether your AMG is naturally aspirated or forced induction, these ported heads optimize combustion efficiency, ensuring enhanced throttle response, horsepower gains, and long-term reliability.
Our expert engine builders at Premier Tuning Group perform a full overhaul, reshaping the intake and exhaust ports to maximize efficiency. Every head undergoes a rigorous process, including CNC porting, five-angle valve jobs, high-pressure cleaning, clean decking, and full valve assembly checks. This ensures precision fitment and durability for high-revving and high-boost applications.
Key Features:
- 24%+ CFM Flow Increase – Optimized for peak performance at .550” lift with a 2.0” exhaust pipe.
- Precision 5-Axis CNC Porting – Intake and exhaust ports fully optimized for maximum airflow.
- Five-Angle Valve Job – Enhances sealing efficiency and improves combustion chamber performance.
- Full Head Overhaul & Health Check – Includes valve height measurement, chamber CC check, and spring/valve inspections.
- High-Pressure Cleaned & Decked – Ensures straightness and a flawless mating surface.
- New OEM Valve Seals – Provides superior longevity and oil control.
Fitment:
- Mercedes-Benz AMG GT (2015-2021) – M178 Twin-Turbo 4.0L V8
- Mercedes-Benz AMG GT-S (2015-2021) – M178 Twin-Turbo 4.0L V8
- Mercedes-Benz AMG GT-C (2017-2021) – M178 Twin-Turbo 4.0L V8
- Mercedes-Benz AMG GT-R (2017-2021) – M178 Twin-Turbo 4.0L V8
- Mercedes-Benz AMG GT-R PRO (2020-2021) – M178 Twin-Turbo 4.0L V8
- Mercedes-Benz AMG GT Black Series (2021) – M178 Twin-Turbo 4.0L V8
Core Exchange Requirement:
This product requires a core exchange. Depending on the condition of the core, some heads may require additional components such as new valves, springs, locks, or other parts.
Upgrade your Mercedes-AMG GT’s engine with PTG M178 CNC Ported Heads, engineered for peak airflow, power, and durability
