Ferrea Dual Valve Spring28.0mm
Our Ferrea Valve Springs are processed with premium-grade alloy and feature special thermal treatment. Our advanced spring design and material specifications has uniform load & stress distribution even in most extreme racing environment.
- Our beehive design spring offers additional durability in all high revving street performance and mid-race applications at an affordable price.
- The dual spring technology enables you to use in high lift camshafts and extreme high RPM.
| Type/Material/Application | Dual Chrome Silicon |
| O.D. | 20.8 mm
28.0 mm |
| I.D. | 16.51 mm
20.8 mm |
| Seat Press. | 65lbs
@ 35 mm |
| Open Press. | 185 lbs
@ 25 mm |
| Rate Inch | 305 lbs |
| Coil Bind | 20 mm |
| Max Net Lift | 14 mm |
Note:
- This Spring requires Ferrea Titanium Retainer # E11011 and BOTH, Ferrea Spring Seat Locator # SL1001 and
- Factory supplied Spring Seat Locator
This product was added to our catalog on Wednesday 04 July, 2012.