{"product_id":"rocket-performance-garage-llc-roller-rocker-arms-m8-2017-2024-276-02210","title":"Rocket Performance Garage Llc Roller Rocker Arms - M8 `2017-2024 — Harley-Davidson (2017-2024)","description":"\u003cp\u003eRocket Performance Garage forged roller rocker arms for Harley Milwaukee-Eight engines, engineered to handle high-lift cams and aggressive valve spring pressures without sacrificing longevity. Built from 8620 steel with a 1.640 ratio geometry optimized for cams exceeding .550\" lift and rated to .650\" maximum valve lift.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e8620 forged steel construction for strength\u003c\/li\u003e\n  \u003cli\u003eRoller design eliminates thrust wear on valves\u003c\/li\u003e\n  \u003cli\u003e1.640 rocker ratio optimized for high-lift cams\u003c\/li\u003e\n  \u003cli\u003e50% longer bushings than stock for extended rebuild intervals\u003c\/li\u003e\n  \u003cli\u003eDirect oil spray to valve springs reduces thermal failure risk\u003c\/li\u003e\n  \u003cli\u003eLarger thrust surface area reduces head wear\u003c\/li\u003e\n  \u003cli\u003eCapable of .650\" maximum valve lift\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rocket Performance Garage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 7-7201\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 8 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson Milwaukee-Eight (M8) models 2017–2024. Recommended for engines running cams with .550\" lift or greater.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need these rockers if I'm running a stock cam?\u003c\/h3\u003e\n\u003cp\u003eNo. Stock rockers are adequate for factory cams. These are engineered for high-lift performance cams (.550\" lift and above).\u003c\/p\u003e\n\u003ch3\u003eWhat's the maximum valve lift these can handle?\u003c\/h3\u003e\n\u003cp\u003eRocket rockers are rated to .650\" maximum valve lift, making them compatible with aggressive aftermarket cam profiles.\u003c\/p\u003e\n\u003ch3\u003eHow do longer bushings affect performance?\u003c\/h3\u003e\n\u003cp\u003eLonger bushings (50% longer than stock) increase the time between rebuilds and reduce rocker wear under high-lift stress.\u003c\/p\u003e\n\u003ch3\u003eWill these work on my 2015 or older M8?\u003c\/h3\u003e\n\u003cp\u003eThis part is designed for 2017–2024 M8 engines. Verify fitment with the manufacturer if you have an older model.\u003c\/p\u003e\n\u003ch3\u003eDo I need to re-tune after installing these rockers?\u003c\/h3\u003e\n\u003cp\u003eRockers alone do not require remapping. Your tuning strategy depends on your complete cam and head package.\u003c\/p\u003e","brand":"Rocket Performance Garage Llc","offers":[{"title":"Default Title","offer_id":53036013256815,"sku":"276-02210","price":2120000.0,"currency_code":"COP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/4d49-65145fb68d3aa.jpg?v=1777531090","url":"https:\/\/vtwinbikers.com\/en-co\/products\/rocket-performance-garage-llc-roller-rocker-arms-m8-2017-2024-276-02210","provider":"Vtwinbikers","version":"1.0","type":"link"}