{"product_id":"btr-max-pressure-gen-2-lt-sbc-dual-spring-kit-650-lift-with-titanium-retainers-565-valve-guides-for-roller-rockers-sk004","title":"BTR MAX PRESSURE GEN 2 LT\/SBC DUAL SPRING KIT - .650\" LIFT WITH TITANIUM RETAINERS - .565\" VALVE GUIDES - FOR ROLLER ROCKERS - SK004","description":"\u003cp\u003e\u003cstrong\u003eBTR MAX PRESSURE GEN 2 LT\/SBC DUAL SPRING KIT - .650\" LIFT - FOR ROLLER ROCKERS - SK004\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eBTR’s Max Pressure Spring Kit applies what we learned when designing the Platinum Spring Kit (SK001) and applies it to applications utilizing roller rockers. Due to the additional weight of roller rockers, a higher spring rate is needed to retain valvetrain stability. Whether you’re putting together a daily driver with a mild cam, a 600 hp N\/A stroker, or a turbocharged 1000 hp brawler, our Platinum Spring Kit will make sure your valves are right where your cam wants them to be at all times.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e• SP010-1 - .650” lift BTR Max Pressure Dual Valve Springs (16)\u003c\/p\u003e \u003cp\u003e• SR004-16 - BTR Titanium Retainer Set For Max Pressure Springs\u003c\/p\u003e \u003cp\u003e• SL565060-16 - BTR Spring Locator Set; .565\" ID, .060\" Thick\u003c\/p\u003e \u003cp\u003e• VS500341-16 - BTR Valve Seal Kit\u003c\/p\u003e \u003cp\u003e• CC648-16 - Valve Lock Set\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpring specs:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e170 lbs @ 1.800”\u003c\/p\u003e \u003cp\u003e380 lbs @ 1.180\"\u003c\/p\u003e \u003cp\u003e450 lbs @ 1.115”\u003c\/p\u003e \u003cp\u003eCoil bind @ 1.000”\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eMEASURE YOUR VALVE GUIDES BEFORE PURCHASE!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":47878223823004,"sku":"SK004\/T\/6560","price":619.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/sk004_t.jpg?v=1792260882","url":"https:\/\/daroracing.com\/products\/btr-max-pressure-gen-2-lt-sbc-dual-spring-kit-650-lift-with-titanium-retainers-565-valve-guides-for-roller-rockers-sk004","provider":"Daro Racing","version":"1.0","type":"link"}