{"product_id":"endurance-beehive®-valve-springs-with-titanium-retainers","title":"Endurance Beehive® Valve Springs with Titanium Retainers","description":"\u003cp\u003eValve Spring Kit - For 5\/16\" Valve Stem - Evolution Big Twin | Twin Cam | XL\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMachined from premium-grade hi-tensile chrome silicon single-conical ovate wire\u003c\/li\u003e\n\u003cli\u003eShot-peened with specially processed thermal heat treat and super NexTex® finish for fatigue life needed to exceed high demands of V-Twin engines\u003c\/li\u003e\n\u003cli\u003eUse a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion\u003c\/li\u003e\n\u003cli\u003eDirect bolt-in replacement up to 0.650\" cam lift; no machining or rocker box clearancing required\u003c\/li\u003e\n\u003cli\u003eKits include: Endurance BeeHive® valve springs, lightweight 7° super Titanium heat-treated retainers, machined spring seats, seat shims, valve locks and a set of premium Viton® valve seals equipped with spring-loaded valve stem wiper system\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eSeat lb \/ installed height:\u003c\/li\u003e\n\u003cli\u003e198 lb @ 1.685\" (0.535\" lift)\u003c\/li\u003e\n\u003cli\u003e194 lb @ 1.703\" (0.553\" lift)\u003c\/li\u003e\n\u003cli\u003e190 lb @ 1.724\" (0.574\" lift)\u003c\/li\u003e\n\u003cli\u003e187 lb @ 1.754\" (0.604\" lift)\u003c\/li\u003e\n\u003cli\u003e185 lb @ 1.780\" (0.630\" lift)\u003c\/li\u003e\n\u003cli\u003e160 lb @ 1.800\" (0.650\" lift)\u003c\/li\u003e\n\u003cli\u003e375 lb @ 1.150\" Open Height\u003c\/li\u003e\n\u003cli\u003eCoil Bind @ 1.100\"\u003c\/li\u003e\n\u003cli\u003eMust be installed at the correct open height, matching max lift to the open height spec of the valve springs.\u003c\/li\u003e\n\u003cli\u003eFeuling® BeeHive® valve spring kits are direct replacement with no machining or rocker box clearance required up to 0.574\" lift for '98-'04 Big Twin and '86-'03 XL and up to 0.650\" lift for '05-'17 Twin Cam. Larger camshafts require valve guide machining for seal to retainer clearance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FEULING PARTS","offers":[{"title":"5\/16\" Valve Stem \/ Evolution Big Twin | Twin Cam | XL","offer_id":53155414671727,"sku":"0926-0851","price":379.95,"currency_code":"USD","in_stock":true},{"title":"7.00 mm Valve Stem \/ 88\"\/96\"\/103\" Twin Cam | XL | XR1200","offer_id":53155414704495,"sku":"0926-0852","price":379.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/0323\/6463\/files\/3C1F97D7-C404-44A7-AE6B-45474B3B40D5_63ab0c6d-f8e8-4236-af9c-a55ae7286529.png?v=1782531004","url":"https:\/\/factory47.com\/products\/endurance-beehive%c2%ae-valve-springs-with-titanium-retainers","provider":"Factory 47","version":"1.0","type":"link"}