Product Description
Thumpr™ NSR 226/246 Hydraulic Roller Cams for Ford 4.6/5.4L Modular 3 Valve. Great idle with excellent power. Good mid-range torque and power gains above 4500 RPM. Compatible with stock valve springs, converter and gears; requires cam phaser upgrade and custom tuning.
No Springs Required
| Advertised Intake Duration | 265 |
|---|---|
| Advertised Exhaust Duration | 298 |
| Intake Duration at .050 Inch Lift | 226 |
| Exhaust Duration at .050 Inch Lift | 246 |
| Intake Valve Lift | 0.450 |
| Exhaust Valve Lift | 0.450 |
| Lobe Lift Intake | N/A |
| Lobe Lift Exhaust | N/A |
| Lobe Separation | 109 |
