Cylinder Works 16-24 Yamaha YZ 250 X 250cc Standard Bore Cylinder Head

This Cylinder Works cylinder head is made from cast aluminum, just like the original equipment on your 2016-2024 Yamaha YZ 250 X. It's designed as a direct replacement, so it comes complete with cam caps and bolts, making installation straightforward. The combustion chamber is unshrouded, which helps improve airflow into the engine. It also features a blended bowl and a competition-grade valve job, meaning the ports have been carefully shaped for better performance.

You'll find that the shortened valve guides are a notable detail, as they allow for the use of high-lift cams. This can lead to increased torque and more power from your 250cc engine. The valve seats and guides themselves are made from C630 nickel/aluminum, a material that's easier on the valves, helping to reduce wear over time. While this head is ready to go, remember that the valves, springs, retainers, and lifters are sold separately, so you'll need to pick those up to complete the assembly.