Ferrea Valve Spring-HD DWD 1530 135 395
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 w/Damper - Chro Silicon Hydraulic & Solid |
| O.D. | 1.005
1.530 |
| I.D. | .730
1.110 |
| Seat Press. | 135 lbs
@1.875 |
| Open Press. | 395 lbs
1.225 |
| Rate Inch | 400 lbs |
| Coil Bind | 1.160 |
| Max Net Lift | .650 |
Note:
- This Spring requires Ferrea Titanium Retainer #E11029 and Ferrea Spring Seat Locator #SL1024
- (Discard OEM Spring Seat Locator)
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