XDP HD High Boost Valve Spring Set XD388

The XDP HD 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 2 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 
• 2 year / unlimited mileage warranty

Specifications:

Installed Height: 1.830”

Installed Pressure: 90lbs 

100Lbs @ .800”

252Lbs @ 1.250” 

Coil Bind: 1.14”

Warranty

All product warranties if any, implied have been done so at the discretion of the manufacturer. If you need warranty assistance on any product you've purchased, please contact the manufacturer directly.

Products manufactured by XDP carry a 2-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to two (2) years from the date of sale and limited solely to the parts contained within the product's kit. All products that are in question of Warranty must be returned shipping prepaid to XDP and must be accompanied by a dated proof of purchase receipt. Warranty is limited to the original purchaser.

Under no circumstances shall the Xtreme Diesel Performance, LLC. be liable for any labor charged or travel time incurred in diagnosis for defects, removal, or reinstallation of this product, or any other contingent expenses.

Vehicle Fitment