Product Description
These springs use the stock retainers which are sufficient for most applications from mild street to high HP/RPM race cars. These are required when adding a turbo to stock engines to prevent the exhaust valves from hanging open and losing valve train control.
These do not fit Gen 1 or 2 engines
SPECIFICATIONS
- Part#PAC-1281X
- NamePAC-1281X RPM Series Ford Gen 3 5.0L Coyote Ovate Beehive
- SKUPAC-1281X
- Alt Part#PAC-1281X-16
- Description RPM Series Ford Gen 3 5.0L Coyote Ovate Beehive
- Outside Diameter0.849 / 1.031
- Outer Spring ID0.527 / 0.709
- Install Height 1.811
- Load at Installed Height 80
- Spring Open Height 1.260
- Spring Open Load 215
- Recommended Valve Lift 0.551
- Spring Rate (lbs/in) 245
- Mass (grams) 44
- Coil Bind (max)1.208
