{"product_id":"jims-machining-rocker-arm-shaft-kit-for-m8-mpn-5837","title":"Jim's Machining Rocker Arm Shaft Kit for M8 [MPN: 5837]","description":"\u003cdiv class=\"wrap-collapsibleMM\"\u003e\n\u003cinput id=\"collapsibleDescriptionMMf514bb7b\" class=\"collapsibleDescriptionMM toggleMM\" type=\"checkbox\"\u003e\u003clabel for=\"collapsibleDescriptionMMf514bb7b\" class=\"lbl-toggleMM\"\u003eProduct Description\u003c\/label\u003e\u003cdiv class=\"collapsible-contentMM\"\u003e\u003cdiv class=\"content-innerMM\"\u003e\n\u003cp\u003eRocker Arm Shaft Kit\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIn an effort to perfect Milwaukee-Eight engine valve train geometry, while improving durability, JIMS developed performance rocker shafts and proprietary hardware\u003c\/li\u003e\n\u003cli\u003eThe rocker arm shafts are precision machined from a low-alloy nickel, chromium, molybdenum case hardened steel\u003c\/li\u003e\n\u003cli\u003eThe hardware flats on the end of the shafts are held to a\u003c\/li\u003e\n\u003cli\u003e0005 parallel tolerance, assuring the rocker is seated in the correct position with the pushrod cup and valve stem tip when installed correctly\u003c\/li\u003e\n\u003cli\u003eJIMS has taken it one step further, and developed a 4130 stud and nut kit to replace the stock hardware used to secure the rocker shafts\u003c\/li\u003e\n\u003cli\u003eCompared to a stock bolt, these JIMS manufactured studs allow the technician the assembly finesse required when torquing the rocker arm shafts on the cylinder head during engine assembly\u003c\/li\u003e\n\u003cli\u003eThese shafts not only improve the stock head configuration; they are a must in a performance application with increased spring pressure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Jim's Machining","offers":[{"title":"Default Title","offer_id":47157024719035,"sku":"CCP-502048","price":186.15,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/5230\/6875\/files\/836661_0_17.jpg?v=1762379703","url":"https:\/\/motomentum.com\/products\/jims-machining-rocker-arm-shaft-kit-for-m8-mpn-5837","provider":"Motomentum","version":"1.0","type":"link"}