This listing is for sixteen (16) conical (beehive) valve springs for GM LSX LS1 LS2 4.8 5.3 6.0 6.2 GEN III IV SET. Spring specifications are as follows. SPRING OD (at bottom): 1.289. CLOSED LOAD: 105-lbs at 1.80. OPEN LOAD: 260-lbs at 1.20.The item "Valve Springs Set/16.600 MAX Lift for GM LSX LS1 LS2 5.3 6.0 6.2 GEN III IV" is in sale since Wednesday, May 8, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Valves & Parts". The seller is "motorwizards" and is located in Birmingham, Alabama. This item can be shipped worldwide.