Performance Valve Springs and Retainer Kit
Can I pick up my order or have it installed at your shop?
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?
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?
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?
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
Description
The XDP Performance Valve Springs and Retainer Kit is the ultimate upgrade for your modified 2001-2016 GM 6.6L Duramax engine. Designed specifically for Chevrolet Silverado and GMC Sierra models, this performance kit is essential for enhancing valve control when you increase boost levels through camshaft upgrades and other modifications.
Featuring a conical spring design, our valve springs offer superior valve control compared to standard straight springs. This innovative design not only improves performance but also allows for the use of smaller and lighter spring retainers, ensuring your engine runs efficiently.
Each spring undergoes a rigorous stress relief process and is computer load mapped, guaranteeing unmatched quality and long-term reliability. To ensure consistency, each spring is matched within 1 lb of seat pressure. This complete kit includes everything you need—valve springs, retainers, and locks—all backed by XDP's 1-year unlimited mileage warranty.
Specifications:
| Feature | Details |
|---|---|
| Installed Height | 1.610 inch |
| Installed Pressure | 125 lbs |
| Pressure at 1.110 inch | 210 lbs |
| Coil Bind | 1.050 inch |
At XDP, we are proud to be a leading retailer, distributor, and manufacturer of top-quality OE, OER, and aftermarket diesel parts and accessories. Our extensive inventory caters to the diverse needs of the diesel community across North America and Canada. Whether you're working, playing, towing, or hauling, we've got the parts to keep you moving!
