Description
If you’re rebuilding a Honda 420 engine, piston quality directly impacts reliability, power output, and how long your engine stays in the ring. The WSM Piston Kit delivers OEM-grade construction with measurable improvements in heat dissipation and ring groove durability—critical factors whether you’re breaking in a fresh build or refreshing a tired block. Order one kit per cylinder and you’re equipped with pistons engineered to handle sustained performance.
- MOS2-coated skirts
- Reduces friction and heat
- Hardened ring groove tops
- Improved E-clip design
- Includes piston, rings, pin, clips
- Additional rings available separately
- Meets/exceeds OEM specs
- One kit per cylinder
- Heat-drawing piston walls
- Nonabrasive expansion-retarding coating
