Lightweight Racing Valve Spring Kit
Fits:
- Yamaha Raptor 660, 2001-2005
- Yamaha Grizzly 660, 2002-2008
- Yamaha Rhino 660, 2004-2007
Kit Includes
- 5 Valve Springs, Chrome Silicon
- 5 Retainers, Titanium
- 5 Base Washers, Heat Treated Steel
- Use OEM Keepers
| Retainer Material | Titanium |
| Valve Lift | 0.450" |
| Installed Height | 1.205" |
| Seat Pressure | 55# |
| Open Pressure | 145# |
| @ Lift | 0.345" |