{"product_id":"103-spring-set","title":"103 Spring set","description":"\u003ch4\u003e103 lb 24-Valve Valve Spring Set\u003c\/h4\u003e\u003cp\u003eRunning more than 35 psi of boost or drive pressure, or spinning past 3,800 rpm? Then the valves are floating. Factory springs sit at roughly 80 lb of seat pressure and cannot hold them shut — boost blows the valve open and exhaust gas washes back into the cylinder on the intake stroke. That reversion slows combustion and costs power. These springs raise seat pressure to 103 lb and stop it.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSeat pressure: \u003cstrong\u003e103 lb\u003c\/strong\u003e (stock is about 80 lb)\u003c\/li\u003e\n\u003cli\u003eControls the valvetrain to \u003cstrong\u003e4,500 rpm\u003c\/strong\u003e and 80 lb of boost\/drive pressure\u003c\/li\u003e\n\u003cli\u003eComplete 24-valve set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eGood to Know\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRetainers and locks are not included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePast 4,500 rpm, step up to the 110 lb competition springs\u003c\/li\u003e\n\u003cli\u003eRunning anything other than Hamilton 103 lb springs with a Hamilton cam voids the cam warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003e1998.5–2007 Dodge Ram 5.9L Cummins 24-valve and 2007.5–2018 Ram 6.7L Cummins.\u003c\/p\u003e","brand":"Hamilton Cams","offers":[{"title":"Default Title","offer_id":48949709766933,"sku":"07-s-003","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/6844\/1109\/files\/PK-Shot-scaled.jpg?v=1747428135","url":"https:\/\/shop.davesusa.com\/products\/103-spring-set","provider":"Dave's Auto Center","version":"1.0","type":"link"}