{"product_id":"ultra-pro-magnum-xd-roller-rocker-arms-for-sbc-1-2-stud-1-5-ratio","title":"Ultra Pro Magnum XD Roller Rocker Arms for SBC; 1\/2\" Stud, 1.5 Ratio","description":"\u003cp\u003e\u003cb\u003eThe latest development in Rocker arm Technology from COMP Cams are Ultra Pro Magnum™ XD Rocker Arms built for 1\/2\" Studs to increase valve train stiffness and stability.\u003c\/b\u003e\u003cspan\u003e Designed to be used in conjunction with the COMP Cams Hi-Tech 1\/2\" Rocker Stud Kit, the latest versions of COMP Cams Ultra Pro Magnum XD are built to utilize 1\/2\" Studs to stabilize SBC valve trains. Ultra Pro Magnum™ XD Rockers are built to outlast and outperform in accuracy and strength, while maintaining all the benefits of the Ultra Pro Magnum™ version. The XD Rockers are engineered from durable 8650 Steel and include a machined billet Pushrod seat insert for a super-accurate ratio. The Rockers also boast precision-sorted needle bearings and hardened Roller tips. And since they now feature the added benefit of accepting 1\/2\" Studs, they are a great choice for anyone looking for more stiffness with Stud mount Rockers. These new Ultra Pro Magnum™ XD Rocker Arms will provide the ultimate in valve train stability for maximum valve motion both at the track and on the street.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1\/2\" Studs provide a stiffer valve train to achieve maximum valve motion in SBC engines\u003c\/li\u003e\n\u003cli\u003eDeliver increased strength and rigidity while reducing the moment of inertia and optimizing dynamic balance\u003c\/li\u003e\n\u003cli\u003eUltra Pro Magnum™ XD Rockers feature a machined billet Pushrod seat insert for a super-accurate ratio\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"comp cams","offers":[{"title":"1810-16","offer_id":47803505017054,"sku":null,"price":630.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2141\/7694\/files\/cams_1100s_1810-16_1100_284.jpg?v=1767726451","url":"https:\/\/harringtonspeformanceparts.com\/products\/ultra-pro-magnum-xd-roller-rocker-arms-for-sbc-1-2-stud-1-5-ratio","provider":"Harrington's Performace Parts","version":"1.0","type":"link"}