{"product_id":"heavy-duty-springs-copy","title":"Dual war head","description":"\u003ch3 data-end=\"400\" data-start=\"0\"\u003e\u003cstrong data-end=\"69\" data-start=\"0\"\u003e89-9812v dual Valve springsw\/ retainers for competition 5000+ RPMs\u003cbr\u003e\u003cbr\u003eDual Spring Kit – Made in the USA, Includes Retainers \u0026amp; 10° Locks\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"400\" data-start=\"0\"\u003eWhen higher RPM, greater valve lift, stiffer spring pressures, and larger valve sizes exceed a single spring’s capabilities, it’s time to upgrade to a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"244\" data-start=\"223\"\u003edual spring setup\u003c\/strong\u003e. Our American-made\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-is-only-node=\"\" data-end=\"286\" data-start=\"264\"\u003eDual Valve Springs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovide the extra control you need, maintaining precise valvetrain motion and safeguarding against valve float.\u003c\/p\u003e\n\u003ch3 data-end=\"418\" data-start=\"402\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-end=\"1113\" data-start=\"419\"\u003e\n\u003cli data-end=\"524\" data-start=\"419\"\u003e\n\u003cstrong data-end=\"447\" data-start=\"421\"\u003eEnhanced Valve Control\u003c\/strong\u003e: Eliminate the risk of valve float in high-stress, high-lift applications.\u003c\/li\u003e\n\u003cli data-end=\"655\" data-start=\"525\"\u003e\n\u003cstrong data-end=\"548\" data-start=\"527\"\u003eAll-Inclusive Kit\u003c\/strong\u003e: Comes complete with\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"583\" data-start=\"570\"\u003eretainers\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"601\" data-start=\"588\"\u003e10° locks\u003c\/strong\u003e, ensuring a secure fit and simplified installation.\u003c\/li\u003e\n\u003cli data-end=\"785\" data-start=\"656\"\u003e\n\u003cstrong data-end=\"685\" data-start=\"658\"\u003eHigh Lift Compatibility\u003c\/strong\u003e: Engineered for up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"722\" data-start=\"708\"\u003e.700″ lift\u003c\/strong\u003e—be sure your machine shop sets the correct installed height.\u003c\/li\u003e\n\u003cli data-end=\"1113\" data-start=\"786\"\u003e\n\u003cstrong data-end=\"814\" data-start=\"788\"\u003eDIY Valve Seal Upgrade\u003c\/strong\u003e:\n\u003cul data-end=\"1113\" data-start=\"820\"\u003e\n\u003cli data-end=\"882\" data-start=\"820\"\u003eYou can run these springs\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"876\" data-start=\"848\"\u003ewithout valve stem seals\u003c\/strong\u003e, or\u003c\/li\u003e\n\u003cli data-end=\"1022\" data-start=\"885\"\u003eModify your head to use\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"931\" data-start=\"911\"\u003eComp Cams 519-16\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseals by employing a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"990\" data-start=\"953\"\u003eHowards Cams Cutter (part #92035)\u003c\/strong\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1019\" data-start=\"995\"\u003e5\/16″ arbor (#92085)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hamilton Cams","offers":[{"title":"Default Title","offer_id":48949700591893,"sku":"07-s-002","price":599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/6844\/1109\/files\/20190805_161309-768x576.jpg?v=1747427919","url":"https:\/\/shop.davesusa.com\/products\/heavy-duty-springs-copy","provider":"Dave's Auto Center","version":"1.0","type":"link"}