Product Description
XFI™ Valve Springs Required Blower 222/239 Hydraulic Roller Finger Follower Cams for Ford 4.6/5.4L Modular 3V. Mid to upper range cam for bolt-on blowers with high boost. Noticeable idle, solid power gains above 4900 RPM, requires spring upgrade. Best with 3000+ stall.
| Advertised Intake Duration | 261 |
|---|---|
| Advertised Exhaust Duration | 282 |
| Intake Duration at .050 Inch Lift | 222 |
| Exhaust Duration at .050 Inch Lift | 239 |
| Intake Valve Lift | 0.491 |
| Exhaust Valve Lift | 0.485 |
| Lobe Separation | 116.5 |
