2005-2007 Chevrolet Cobalt SS Dual Valve Spring Kit by Supertech
Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.
Features
- Seat Pressure: 94 @ 34.60
- Open Pressure: 232 @ 12.5
- Max Lift: 13.90mm
- Coil Bind: 20.70mm
- Rate: 11.1
- Kit spring: SPR-EC3027D
- Retainer: RET-EC3020/T1
- InnSpr.ID: 14.20mm
- InnSpr.OD: 19.60mm
- OutSpr.OD: 26.60mm
- OutSpr.ID: 19.60mm
- Seat Locator: SEAT-EC3020
Benefits
- Underwent a gas nitriding process before shot peening for improved fatigue life
