Description
If you’re serious about maximizing displacement and torque in your ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS 4178 delivers factory-proven reliability with the added benefit of increased stroke length, giving you measurable gains in low-end power without sacrificing durability. This complete assembly arrives factory-assembled and trued to OEM specs, so you can focus on installation rather than sourcing individual components.
Key Technical Specifications:
- Factory-assembled, trued to OEM
- Included: connecting rods, top-end bearings
- Main bearings and seals separate
- Meets or surpasses OEM performance
- Completely rebuildable design
- Six long-stroke applications available
- Optimized for TRX400EX fitment
- Compatible with KFX/LTZ 400
- Banshee, Warrior, Raptor applications
- Special pistons eliminate machine work
- Ready for direct installation
- No fabrication required (select models)
