{"product_id":"engine-rocker-arm-parts-cca1828-1","title":"Ultra Pro Magnum XD Rocker w\/ 1.8 Ratio \u003cbr\u003e for Chevrolet Big Block w\/ 7\/16in Stud","description":"\u003cb\u003eDescription:\u003c\/b\u003e\u003cbr\u003e\n\u003cbr\u003eThe Ultra Pro Magnum 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 bearings 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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eMachined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. This 1828 rocker features a 1.8 ratio for use with 7\/16\" stud Chevrolet 396-454 Big Block.\n\u003c\/li\u003e\u003cli\u003eEngine Family: Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)\n\u003c\/li\u003e\u003cli\u003eMaximum Valve Spring Open Pressure: 1000\n\u003c\/li\u003e\u003cli\u003eRocker Arm Material: 8650 Chromemoly Steel\n\u003c\/li\u003e\u003cli\u003eRocker Arm Ratio: 1.8\n\u003c\/li\u003e\u003cli\u003eRocker Arm Series: Ultra Pro Magnum XD\n\u003c\/li\u003e\u003cli\u003eRocker Stud Diameter: 7\/16 IN\u003c\/li\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cli\u003eEngine Rocker Arm\u003c\/li\u003e","brand":"Comp Cams","offers":[{"title":"Default Title","offer_id":52886012887403,"sku":"CCA-1828-1","price":70.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1961\/1987\/files\/CCA-1828-1-1.jpg?v=1770602037","url":"https:\/\/caautoparts.com\/products\/engine-rocker-arm-parts-cca1828-1","provider":"CA Auto Parts","version":"1.0","type":"link"}