When factory head gaskets reach their limit, Hamilton Cams Fire Ring Head Gaskets are engineered to provide the sealing strength needed for high-horsepower, high-boost 2019-2024 6.7L Cummins engines. Designed for extreme cylinder pressures, this fire ring gasket delivers exceptional combustion sealing while helping prevent combustion leakage in demanding street, towing, and competition applications. Whether you're building a dedicated race engine or a high-output street truck, this gasket is built to keep the cylinder pressure where it belongs.
Hamilton Cams components are developed specifically for high-performance Cummins engines. Our fire ring sealing system has been proven in demanding diesel applications where conventional head gaskets often reach their limits. When reliability matters under extreme cylinder pressure, Hamilton Cams delivers the sealing performance serious builders demand.
Features and Benefits:
- Designed specifically for 2019-2024 6.7L Cummins engines
- Superior combustion sealing under extreme boost and cylinder pressure
- Ideal for high-performance and competition engine builds
- Helps reduce combustion leakage in high-horsepower applications
- Proven solution for engines producing 800+ horsepower
- Precision fire ring design for maximum sealing reliability
- Manufactured from premium materials for long service life
Details:
- Sold As: Each
- Universal: No
- Vehicle Type: Truck
- Liter: 6.7L
- Fuel Type: Diesel
- Valve: 24-Valve
- Thickness: .066 Inch (1.75 mm)
- Fire Ring Wire Size: .105 Inch
- Fire Ring Outside Diameter: 4.560 Inch
- Recommended Groove Radius: .017 Inch - .018 Inch
- Groove Cutter Radius: .120 Inch
Fitment Notes:
- Fitment: 2019-2024 Ram 6.7L Cummins 24-Valve engines requiring a fire-ring head gasket.
- High-strength cylinder head studs are required. We recommend using ARP 625+ head studs to achieve the clamp load necessary for high-cylinder-pressure applications.
Installation Notes:
- Proper surface preparation is critical for reliable sealing.
- Cylinder head should be flat within .003 Inch end-to-end
- For best results, machine both the cylinder head and engine block
- If the block is not resurfaced, clean the deck thoroughly using a 320-grit (or finer) sharpening stone to remove imperfections without damaging the deck surface
- Proper groove geometry is essential for fire ring performance.
- For applications under approximately 800 HP, grooves may be cut into the cylinder head
- Always use a .120 Inch radiused cutter
- Groove radius should measure .017 Inch - .018 Inch
- Proper installation is just as important as the gasket itself.
- 1. Torque head studs to 130 ft-lbs during assembly (or follow the fastener manufacturer's specifications if different).
- 2. Bring the engine to operating temperature.
- 3. While the engine is still warm, perform a complete hot retorque.
- 4. Because the gasket compresses during retorque, verify and adjust valve lash afterward.
- 5. Perform at least one additional retorque before exposing the engine to full boost, heavy load, or maximum RPM.
- Apply assembly lubricant generously to the threads, washers, and nuts
- Ensure every fastener receives equal lubrication
- Never exceed the torque specifications provided by the fastener manufacturer
Applications:
- High-performance street trucks
- Competition and race engines
- High-boost turbocharger combinations
- Heavy towing applications with elevated cylinder pressure
- Builds producing 800+ horsepower