{"product_id":"btr-spring-kit-solid-roller-lsx-750-lift-sk427","title":"BTR Spring Kit - Solid Roller LSX - .750\" Lift - Sk427","description":"\u003cp\u003eBTR SPRING KIT - SOLID ROLLER LSx - .750\" LIFT - SK427\u003cbr\u003e\nWhen you take the plunge into a solid roller combination, taking the guesswork out of the valvetrain combination is a huge relief. For that reason, BTR is proud to introduce the SK427 valve spring kit.\u003cbr\u003e\nParts included:\u003cbr\u003e\n(16) SR532 titanium retainers\u003cbr\u003e\n(16) PSI-DR427R ML valve springs\u003cbr\u003e\n(16) VS LS valve seals\u003cbr\u003e\n(32) VLM8-8MM-1 valve locks\u003cbr\u003e\n(16) SLS128-1 locators (stock guides) OR (16) SLS138-1 locators (bronze guides)\u003cbr\u003e\nSpring specs:\u003cbr\u003e\nType: Dual\u003cbr\u003e\nSpring OD: 1.300″\u003cbr\u003e\nInner ID: .628″\u003cbr\u003e\nSeat: 230 lbs @ 1.850″\u003cbr\u003e\nOpen: 715 lbs @ 1.100″\u003cbr\u003e\nRecommended Lift: .750″\u003cbr\u003e\nNOTE: Please check valve guide clearance if you exceed .650 - .660 lift.\u003cbr\u003e\n*Due to design of retainer \u0026amp; valve lock, these components must be used as a set are cannot be mix\/matched with other manufacturer's components.\u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":52041492037926,"sku":"SK427 CONFIGURABLE","price":999.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/1666\/1542\/files\/s_k_sk427_configurable_1_of_1__7_f0046b2f-3e52-4892-bc39-b38f34c4c97a.jpg?v=1770813017","url":"https:\/\/billysspeedshop.com\/fr\/products\/btr-spring-kit-solid-roller-lsx-750-lift-sk427","provider":"Billys Speed Shop","version":"1.0","type":"link"}