XDP Performance Valve Springs & Retainer Kit XD386

2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

Part #: XD386

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$615.95

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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

This product can not be shipped to these states: CA

YEAR	MAKE	ENGINE
2001	GMC	6.6L LB7 Duramax
2001	Chevy	6.6L LB7 Duramax
2002	GMC	6.6L LB7 Duramax
2002	Chevy	6.6L LB7 Duramax
2003	GMC	6.6L LB7 Duramax
2003	Chevy	6.6L LB7 Duramax
2004	GMC	6.6L LB7 Duramax
2004	Chevy	6.6L LB7 Duramax
2004.5	GMC	6.6L LLY Duramax
2004.5	Chevy	6.6L LLY Duramax
2005	GMC	6.6L LLY Duramax
2005	Chevy	6.6L LLY Duramax
2006	GMC	6.6L LLY/LBZ Duramax
2006	Chevy	6.6L LLY/LBZ Duramax
2007	GMC	6.6L LLY/LBZ Duramax
2007	Chevy	6.6L LLY/LBZ Duramax
2007.5	GMC	6.6L LMM Duramax
2007.5	Chevy	6.6L LMM Duramax
2008	GMC	6.6L LMM Duramax
2008	Chevy	6.6L LMM Duramax
2009	GMC	6.6L LMM Duramax
2009	Chevy	6.6L LMM Duramax
2010	GMC	6.6L LMM Duramax
2010	Chevy	6.6L LMM Duramax
2011	GMC	6.6L LML Duramax
2011	Chevy	6.6L LML Duramax
2012	GMC	6.6L LML Duramax
2012	Chevy	6.6L LML Duramax
2013	GMC	6.6L LML Duramax
2013	Chevy	6.6L LML Duramax
2014	GMC	6.6L LML Duramax
2014	Chevy	6.6L LML Duramax
2015	GMC	6.6L LML Duramax
2015	Chevy	6.6L LML Duramax
2016	GMC	6.6L LML Duramax
2016	Chevy	6.6L LML Duramax