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So you're running twin turbos that pump a ton of air into the engine,but are you really getting the most out of that additional CFM? TheHamilton Oversized Valves help ensure that you are! Featuring 1.870 exhaust valves, both with a 45 degree seat angle, built from 21-4n material, these will ensure you're getting plenty of airflow. These valves are a drop in replacement into aHamilton Head, but will requiring machine work to the seat on a factory head.IMPORTANT NOTES:
- You must run a dual spring with these valves due to the added mass in the valvetrain. With single springs and larger than OEM valves, valve float will occur which can cause damage to retainers locks, valves, head, piston, turbo, wallet and relationship with your significant other.
- When machining valve seat on OEM head to fit these larger valves, make sure you set valve face at .055" from cylinder head surface.
- ManufacturerHamilton Cams
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