{"product_id":"pac-rpm-series-gm-dual-valve-spring-set-1-290-o-d-145-385lbs-1-800-700-lift-1-000-coil-bind","title":"PAC RPM Series GM Dual Valve Spring Set, 1.290\" O.D - PAC-1204X-16","description":"\u003cp\u003eDUAL VALVE SPRINGS, 1.290 OD\u003c\/p\u003e\u003cp\u003e145-385lbs @ 1.800\", .700\" Lift, 1.000\" Coil Bind\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e: PAC-1204X-16\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cdiv class=\"value description\" itemprop=\"description\"\u003e \u003cp\u003ePAC Racing's Street Performance RPM Series Beehive Valve Springs are constructed using our signature PACaloy super clean wire and are heat-treated in-house for precision spring rates and improved strength. They also receive a multi-peen process, polishing, and a Nano-Peen? proprietary surface treatment for service life optimization. Applications include GM Gen III\/IV LS, Ford 2V and 4V MO.D Motors, Ford Coyote, Big Block Chevy, Ford 5.4L GT500 \u0026amp; Cobra Jet, Chrysler 6.4L Gen III Hemi, GM Gen IV LS7, and Ford GO.Dzilla 7.3L.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt using our signature PACaloy super clean wire to ensure strength and durability\u003c\/li\u003e\n\u003cli\u003eIn-house heat-treating for precise spring rates and increased strength\u003c\/li\u003e\n\u003cli\u003eMulti-peen process to optimize service life\u003c\/li\u003e\n\u003cli\u003ePolishing to improve operating cycles\u003c\/li\u003e\n\u003cli\u003eNano-Peen proprietary surface treatment\u003c\/li\u003e\n\u003c\/ul\u003e \u003c\/div\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e: \u003c\/p\u003e\u003cdiv class=\"content-body\"\u003e\u003cp\u003eOuter Diameter - Outer Valve Spring: 1.290\"\u003cbr\u003eInner Diameter - Outer Valve Spring: 0.950\"\u003cbr\u003eInner Diameter - Inner Valve Spring: 0.694\"\u003cbr\u003eInstalled Height: 1.800\"\u003cbr\u003eInstalled Load \/ Height (Valve Closed): 145 LB @ 1.800\"\u003cbr\u003eOpen Height: 1.150\"\u003cbr\u003eOpen Load: 388 PS\u003cbr\u003eOpen Load \/ Height (Valve Open): 385 LB @ 1.150\"\u003cbr\u003eValve Spring Rate: 369 PS\u003cbr\u003eMax Coil Bind: 1.000\"\u003cbr\u003eMax Valve Lift: 0.750\"\u003cbr\u003eRecommended Valve Spring Retainer - 300 Series: R335\u003cbr\u003eRecommended Valve Spring Retainer - 400 Series: R435, R450\u003cbr\u003eRecommended Valve Spring Retainer - 500 Series: R550\u003cbr\u003eRecommended Valve Spring Retainer - 600 Series: R635, R650\u003cbr\u003eRecommended Valve Spring Seat: S129, S135, S136\u003cbr\u003eValve Spring Series: RPM Series\u003cbr\u003eValve Spring Type: Dual\u003cbr\u003ePrimary Market: Circle Track, Street Performance\u003c\/p\u003e\u003c\/div\u003e\u003cp\u003e\u003c\/p\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":49001561030883,"sku":"PAC-1204X-16","price":920.8,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/0821\/9875\/files\/vv2isev4krxptwzwmqjz.jpg?v=1779456120","url":"https:\/\/fastlanespares.co.nz\/products\/pac-rpm-series-gm-dual-valve-spring-set-1-290-o-d-145-385lbs-1-800-700-lift-1-000-coil-bind","provider":"Fast Lane Spares","version":"1.0","type":"link"}