{"product_id":"xdp-xd386-performance-valve-springs-retainer-set-2001-2016-duramax","title":"XDP XD386 Performance Valve Springs \u0026 Retainer Set (2001-2016 Duramax)","description":"\u003cdiv class=\"cmp-product-force-font\"\u003e\n\u003cdiv\u003eThe XDP Performance Valve Springs \u0026amp; 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.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch5\u003eFeatures: \u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e125 Lb. Seat Pressure\u003c\/li\u003e\n\u003cli\u003eConical Spring Design \u003c\/li\u003e\n\u003cli\u003ePerformance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eEssential For Elevated Boost Levels \u003c\/li\u003e\n\u003cli\u003eComplete Set (Springs, Locks \u0026amp; Retainers)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003eInstalled Height: 1.610”\u003c\/div\u003e\n\u003cdiv\u003eInstalled Pressure: 125lbs \u003c\/div\u003e\n\u003cdiv\u003e210lbs @ 1.110” \u003c\/div\u003e\n\u003cdiv\u003eCoil Bind: 1.050”\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cmp-product-force-font\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cu\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"cmp-product-force-font\"\u003e\n\u003ca href=\"https:\/\/www.xtremediesel.com\/xtreme-diesel-performance-xdp-product-warranty-availability#warranty\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cu\u003eManufacturer Warranty*:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e2 Year \/ Unlimited Mileage\u003c\/div\u003e","brand":"XDP MFG","offers":[{"title":"Default Title","offer_id":51333319622944,"sku":"XD386","price":675.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/xdp-xd386-performance-valve-springs-retainer-set-2001-2016-duramax-6320941.jpg?v=1779541570","url":"https:\/\/www.southerndieselsupply.com\/products\/xdp-xd386-performance-valve-springs-retainer-set-2001-2016-duramax","provider":"Southern Diesel Supply","version":"1.0","type":"link"}