Hamilton Cams Fire Ring Head Gasket .066 in 07-18 6.7L Cummins
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Regular price
$299.00
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
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Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
Fire ring head gasket for the 6.7L Cummins at .066 inch thickness, using .105 inch wire at a 4.560 inch outside diameter. Intended for builds where cylinder pressure has climbed past what a factory gasket will contain, which in practice means somewhere north of 800 horsepower.
Key Features
- .066 inch (1.75mm) gasket thickness
- 4.560 inch wire outside diameter, .105 inch wire
- Groove specification: .017-.018 inch when cutting grooves in the head or block
Fitment
- 2007.5-2018 Dodge and Ram 6.7L Cummins 24-valve
Machining and Installation
- High-strength studs are required to achieve proper clamp load
- Cylinder head must be within .003 inch end to end; machining both head and block is best practice
- If the block is not surfaced, clean the deck with a 320 grit or finer stone to knock down high spots
- Always use a .120 inch radiused cutter for groove formation
- Torque to 130 ft-lbs at startup, hot retorque at operating temperature, then retorque at least once more before applying full load or RPM
- Each retorque reduces valve lash, so readjust as needed
- Lubricate nut, washer and threads liberally for consistent clamp load across all studs
- Never exceed the fastener manufacturer's torque limits
Product Details
- Brand: Hamilton Cams
- Manufacturer Part Number: 07-g-6.7
- UPC: 857340008898
Shipping Height: 0.0
Shipping Length: 0.0
Shipping Width: 0.0