Heavy Duty High Boost Valve Spring Set 2003-2010 Ford 6.0L/6.4L Powerstroke XDP

The XDP Heavy Duty High Boost Valve Spring Set XD388 is an essential upgrade to strengthen and gain control of the valvetrain on your 2003-2010 Ford 6.0L/6.4L Powerstroke. These valve springs deliver improved valve control over a factory valve spring with increased spring pressure to minimize valve float. Each spring endures a stress relief process and is computer load mapped to provide a high-quality product with long-term durability. Tested within 1 lb of seat pressure, the XD388 comes as a complete set and includes XDP's 1-year unlimited mileage warranty. Valve springs only, this set re-uses your factory retainers and locks.Features: Set of 32 Springs100 Lb. Seat PressurePerformance Valve Spring KitEssential For Elevated Boost Levels1-Year Unlimited Mileage WarrantySpecifications: Installed Height: 1.830 inchInstalled Pressure: 90lbs100Lbs at .800 inch252Lbs at 1.250 inchCoil Bind: 1.14 inch