Fluidampr Ford 6.4L Powerstroke Harmonic Damper - SFI RA002003 Metal Retainer Nut is More

Metal Retainer Nut is More Secure Than Plastic Clip

Installation requires the use of a 10 gauge wire or larger for safe operation

This is the best small block Ford 20 inline head you'll find to provide huge horsepower to out run your competition

Available in Twist-on and Crimp-on styles for more plumbing options at home or at the track

Fluidampr Ford 6.4L Powerstroke Harmonic Damper - SFI RA002003 Metal Retainer Nut is MoreSerious power requires a serious damper. Protect your truck's engine with the technology preferred by heavy duty diesel OEMs. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Competition built precision CNC machined and balanced high grade steel components. Corrosion resistant black