XDP  |  SKU: HVCD_XD388

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

Regular price $ 39995

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

Description

Upgrade your engine's performance with the XDP Heavy Duty High Boost Valve Spring Set, specifically designed for 2003-2010 Ford 6.0L/6.4L Powerstroke models. This high-quality valve spring set is essential for enhancing your vehicle's valvetrain control and boosting efficiency.

This Part Fits:

  • 2003 Ford F-250 Super Duty
  • 2003 Ford F-350 Super Duty
  • 2003 Ford F-450 Super Duty
  • 2003 Ford Excursion
  • 2004 Ford F-250 Super Duty XLT
  • 2004 Ford F-350 Super Duty XLT
  • 2004 Ford F-450 Super Duty Lariat
  • 2004 Ford Excursion XLT
  • ... (List continues for all applicable models and years)

The XD388 set comprises 32 springs that deliver a solid 100 lb. seat pressure, crucial for minimizing valve float under elevated boost levels. Each spring undergoes a meticulous stress relief process and is computer load mapped to ensure long-lasting durability, making it an excellent choice for performance enthusiasts.

Specifications:

Feature Specification
Installed Height 1.830 inch
Installed Pressure 90lbs
Pressure at .800 inch 100Lbs
Pressure at 1.250 inch 252Lbs
Coil Bind 1.14 inch

This valve spring set is designed to reuse your factory retainers and locks, making installation straightforward. Plus, it comes with XDP's 1-year unlimited mileage warranty, ensuring your investment is protected.

At XDP, we are committed to providing top-quality OE, OER, and aftermarket diesel parts. With over 20 years of experience serving the diesel community across North America, we're here to support your needs, whether for work or play. Experience the difference with the XDP Heavy Duty High Boost Valve Spring Set!