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USD 615.95
Part #: XD386

XDP Performance Valve Springs & Retainer Set XD386

Vehicle Fitment:
2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML | See full application list below
Part #: XD386
$615.95
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Description

The XDP Performance Valve Springs & 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 & Retainers)
Specifications:
Installed Height: 1.610”
Installed Pressure: 125lbs 
210lbs @ 1.110” 
Coil Bind: 1.050”

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. Click Here for full warranty policy.
Shipping Restrictions Apply shipping restriction icon This product can not be shipped to these states: CA

Vehicle Fitment

YEAR MAKE MODEL FOR ENGINE SERIES
2001 Chevrolet Silverado 2500 HD 6.6
2002 Chevrolet Silverado 2500 HD 6.6
2003 Chevrolet Silverado 2500 HD 6.6
2004 Chevrolet Silverado 2500 HD 6.6
2005 Chevrolet Silverado 2500 HD 6.6
2006 Chevrolet Silverado 2500 HD 6.6
2007 Chevrolet Silverado 2500 HD 6.6
2008 Chevrolet Silverado 2500 HD 6.6
2009 Chevrolet Silverado 2500 HD 6.6
2010 Chevrolet Silverado 2500 HD 6.6
2011 Chevrolet Silverado 2500 HD 6.6
2012 Chevrolet Silverado 2500 HD 6.6
2013 Chevrolet Silverado 2500 HD 6.6
2014 Chevrolet Silverado 2500 HD 6.6
2015 Chevrolet Silverado 2500 HD 6.6
2016 Chevrolet Silverado 2500 HD 6.6
2007 Chevrolet Silverado 2500 HD Classic 6.6
2001 Chevrolet Silverado 3500 6.6
2002 Chevrolet Silverado 3500 6.6
2003 Chevrolet Silverado 3500 6.6
2004 Chevrolet Silverado 3500 6.6
2005 Chevrolet Silverado 3500 6.6
2006 Chevrolet Silverado 3500 6.6
2007 Chevrolet Silverado 3500 Classic 6.6
2007 Chevrolet Silverado 3500 HD 6.6
2008 Chevrolet Silverado 3500 HD 6.6
2009 Chevrolet Silverado 3500 HD 6.6
2010 Chevrolet Silverado 3500 HD 6.6
2011 Chevrolet Silverado 3500 HD 6.6
2012 Chevrolet Silverado 3500 HD 6.6
2013 Chevrolet Silverado 3500 HD 6.6
2014 Chevrolet Silverado 3500 HD 6.6
2015 Chevrolet Silverado 3500 HD 6.6
2016 Chevrolet Silverado 3500 HD 6.6
2001 GMC Sierra 2500 HD 6.6
2002 GMC Sierra 2500 HD 6.6
2003 GMC Sierra 2500 HD 6.6
2004 GMC Sierra 2500 HD 6.6
2005 GMC Sierra 2500 HD 6.6
2006 GMC Sierra 2500 HD 6.6
2007 GMC Sierra 2500 HD 6.6
2008 GMC Sierra 2500 HD 6.6
2009 GMC Sierra 2500 HD 6.6
2010 GMC Sierra 2500 HD 6.6
2011 GMC Sierra 2500 HD 6.6
2012 GMC Sierra 2500 HD 6.6
2013 GMC Sierra 2500 HD 6.6
2014 GMC Sierra 2500 HD 6.6
2015 GMC Sierra 2500 HD 6.6
2016 GMC Sierra 2500 HD 6.6
2007 GMC Sierra 2500 HD Classic 6.6
2001 GMC Sierra 3500 6.6
2002 GMC Sierra 3500 6.6
2003 GMC Sierra 3500 6.6
2004 GMC Sierra 3500 6.6
2005 GMC Sierra 3500 6.6
2006 GMC Sierra 3500 6.6
2007 GMC Sierra 3500 Classic 6.6
2007 GMC Sierra 3500 HD 6.6
2008 GMC Sierra 3500 HD 6.6
2009 GMC Sierra 3500 HD 6.6
2010 GMC Sierra 3500 HD 6.6
2011 GMC Sierra 3500 HD 6.6
2012 GMC Sierra 3500 HD 6.6
2013 GMC Sierra 3500 HD 6.6
2014 GMC Sierra 3500 HD 6.6
2015 GMC Sierra 3500 HD 6.6
2016 GMC Sierra 3500 HD 6.6

Specifications

  • MFG. Number XD386
  • Manufacturer Name XDP
  • Shipping Weight 6.00 lb.
  • Shipping Length 13 in.
  • Shipping Width 5 in.
  • Shipping Height 5 in.
  • Fuel Type Diesel
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
  • Internal L0R7

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