![Comp Cams Thumpr NSR 226/246 Hydraulic Roller Camshafts (05-10 Mustang GT)](https://www.americanmuscle.com/image/comp-cams-mustang-thumpr-nsr-226-246-hydraulic-roller-camshafts-127010.435299.jpg?obj=car&wid=640&hei=480&sharpen=1)
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Description, Q&A
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.
Fitment:
Comp Cams 127010
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