L6 HEAD ver.JP
The latest 5-axis CNC machining process has insured combustion chamber molding with no volume error between each cylinder. In addition, there is no need for argon welding, shaping, or excessive surface grinding to reduce the combustion chamber volume, so there is no need to worry about heat distortion or any other reduction in the head body strength. Two types of seat rings are available: a special heat-resistant steel for durability and a beryllium copper alloy for performance.