XDP HD High Boost Valve Spring Set 11-16 Ford 6.7L Powerstroke REC-264146BKRGB customers with aging trucks have

customers with aging trucks have often asked ReadyLIFT for a rear shock replacement

faded plastic valve cover is just sitting square

and hydraulic efficiency

Engines built 2003-1/10/2006 will require 18mm

XDP HD High Boost Valve Spring Set 11-16 Ford 6.7L Powerstroke REC-264146BKRGB customers with aging trucks haveIf you're pushing your 6. 7L Powerstroke harder than stock, or just want added peace of mind under the hood, valve control becomes critical. The XDP HD High Boost Valve Spring Set is designed to keep your valvetrain operating smoothly and consistently, even as boost levels increase. Featuring a conical spring design, these upgraded valve springs are built to handle increased cylinder pressure while helping extend valve life and maintain reliable