Rudy's High Rev Performance Valve Springs For 03-10 6.0/6.4 Powerstroke 2003-2007 Ford F-250 6.0L Some electrical knowledge is needed

Some electrical knowledge is needed for installation

Built with full-length diesel-specific coil springs

Main Pipe Diameter: 2

Built by enthusiasts who demand more from their vehicles

Core Length: 25-1/2 in

Rudy's High Rev Performance Valve Springs For 03-10 6.0/6.4 Powerstroke 2003-2007 Ford F-250 6.0L Some electrical knowledge is neededMost performance springs that are used on the 6. 0L 6. 4L Powerstroke, are springs from another that are adapted to fit. Using a spring designed for a gasoline and using it on your Powerstroke, does not address all of the problems associated with high rpm, high boost pressure, diesel engines. Does the spring you are currently using require you to machine the head or use different valvetrain components? Chances are you are running a rebadged, mass