Mutha' Thumpr NSR 234/254 Hydraulic Roller Cams for Ford 4.6/5.4L Modular 3 Valve. Very rough idle, biggest cam for stock heads. Great power above 4900 RPM. Compatible with stock valve springs, benefits from converter & gears, requires cam phaser upgrade & custom tuning.
- Cam Style:
- Hydraulic roller
- Basic Operating RPM Range:
- 750-6,600
- Intake Duration at .050 inch Lift:
- 234
- Exhaust Duration at .050 inch Lift:
- 254
- Duration at .050 inch Lift:
- 234 int./254 exh.
- Advertised Intake Duration:
- 273
- Advertised Exhaust Duration:
- 306
- Advertised Duration:
- 273 int./306 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio:
- 0.450 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio:
- 0.450 in.
- Valve Lift with Factory Rocker Arm Ratio:
- 0.450 int./0.450 exh.
- Lobe Separation (degrees):
- 109
- Computer-Controlled Compatible:
- Yes
- Material:
- Billet Steel
- Valve Springs Required:
- Yes
- Camshaft Manufacturers Description:
- Hydraulic Roller - Mutha' Thumpr: Very rough idle, biggest cam for stock heads. Great power above 4900 RPM. Compatible with stock valve springs, benefits from converter and gears, requires cam phaser upgrade and custom tuning.
- Quantity:
- Sold individually.
- Notes:
- Fits 2V SOHC engines only.
- Make:
- Ford
- Engine Family:
- Ford modular V8
- Engine Sizes:
- 4.6L/281-5.4L/330
- Years:
- 1991-2016
- Cylinder Head:
- 2-Valve
