XDP Heavy Duty High Boost Valve Spring Set for Ford (2003-10) 6.0L/6.4L Power Stroke

XDP Heavy Duty High Boost Valve Spring Set for Ford 6.0L/6.4L Power Stroke 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 Springs •100 Lb. Seat Pressure •Performance Valve Spring Kit •Essential For Elevated Boost Levels •1-Year Unlimited Mileage Warranty Specifications: •Installed Height: 1.830 inch •Installed Pressure: 90lbs •100Lbs at .800 inch •252Lbs at 1.250 inch •Coil Bind: 1.14 inch