Description
When you’re pushing a Honda 400 to its limits, stock pistons become your bottleneck. The WSM Piston Kit delivers OEM-equivalent or superior quality with purpose-built engineering—MOS2-coated skirts reduce friction and heat while specially hardened ring grooves handle the punishment of high-RPM operation. This is the foundation your build needs for reliable power gains and extended engine longevity.
Each kit contains a complete piston assembly ready for installation. Order one kit per cylinder, and step up to +.75 mm oversizing for increased displacement and compression benefits.
- Meets/exceeds OEM quality
- +.75 mm bore size
- MOS2-coated skirts
- Heat-dissipating design
- Hardened ring grooves
- Improved E-clip design
- Includes piston, rings, pin, clips
- Additional rings sold separately
- One kit per cylinder
- Bolt-on installation
- MPN: 50-230-06K
