CNC Fabrication Stage 1 Ovate Valve Spring Kit 03-10 Ford 6.0L/6.4L Powerstroke DE-K4214S-RP sometimes you may have to

sometimes you may have to pick between strength or style

making it the perfect step up from stock

thanks to thicker blades

260 GPH: FOR BIG POWER AND HEAVY DEMAND (900-1200 HP)

CNC Fabrication Stage 1 Ovate Valve Spring Kit 03-10 Ford 6.0L/6.4L Powerstroke DE-K4214S-RP sometimes you may have toIf you're pushing your Powerstroke beyond stock power levels, factory valve springs can quickly become a weak link. The CNC Fabrication Stage 1 Ovate Valve Spring Kit is designed to provide the additional valve control needed for higher boost, increased RPM, and performance camshaft applications. By keeping the valvetrain stable under demanding conditions, these springs help reduce valve float, improve engine reliability, and give you the confidence