Description
If you’re building a high-lift Twin Cam engine and need valve springs that can handle aggressive cam profiles without sacrificing reliability, S&S Cycle’s .650″ valve springs are engineered for the job. These domestically manufactured springs deliver the consistent load rates and durability required for sustained performance at elevated RPM, backed by S&S Cycle’s reputation for precision manufacturing. Whether you’re optimizing a street engine or dialing in a performance build, proper valve spring selection is critical to prevent float and maintain valve timing integrity.
- Valve lift: .650″
- Installed height: 1.860″
- Installed load: 178 lbs.
- Max lift load: 376 lbs.
- Max RPM: 6500
- Includes upper/lower collars
- Includes valve keys
- Twin Cam compatible
- Made in USA
- Bolt-on installation







