{"product_id":"cca-rocker-arm-sets-65","title":"COMP Cams 1834-16 - Ultra Pro Magnum XD Rockers w\/ 1.7 Ratio for Ford 289, 302, 351W w\/ 7\/16\" Stud","description":"\u003cp\u003eThe Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precision-sorted needle bear ings and hardened Roller tips to better distribute the load and reduce wear for a longer service life. In addition, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI optimization for endurance, drag and circle track Applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for On-Road Vehicles?:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Racing and Off-Road Only Vehicles?:\u003c\/strong\u003e Yes, but must be a race\/competition only vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Ford 289-351W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Valve Spring Open Pressure:\u003c\/strong\u003e 1000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arm Material:\u003c\/strong\u003e 8650 Chromemoly Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arm Ratio:\u003c\/strong\u003e 1.7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Arm Series:\u003c\/strong\u003e Ultra Pro Magnum XD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRocker Stud Diameter:\u003c\/strong\u003e 7\/16 in\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e Ultra Pro Magnum XD Rocker Arm bodies are guaranteed for life. warranty\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":45357453541511,"sku":"COM1834-16","price":982.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/1834-16.jpg?v=1788268096","url":"https:\/\/checkout.northernperformance.ca\/products\/cca-rocker-arm-sets-65","provider":"Northern Performance","version":"1.0","type":"link"}