Xtreme Diesel
Performance Valve Springs and Retainer Kit
The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control.
The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability.
Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 1-year unlimited mileage warranty.
Features:
- 125 Lb. Seat Pressure
- Conical Spring Design
- Performance Valve Spring Kit
- Essential For Elevated Boost Levels
- Complete Set (Springs, Locks and Retainers)
Specifications:
- Installed Height: 1.610 inch
- Installed Pressure: 125lbs
- 210lbs at 1.110 inch
- Coil Bind: 1.050 inch
FAQ
Your Guide to Shopping with Confidence: Essential FAQs for JRB Customs Shop Customers
What products do you offer?
We specialize in a wide range of truck parts, including performance upgrades and customization accessories.
How do I place an order?
Orders can be placed directly through our website with various payment options available.
What is your return policy?
Returns are accepted under specific conditions. Please refer to our Return and Refund Policy for more information.
How can I contact customer support?
Our customer support team is available via email.
