{"product_id":"star-racing-thrasher-650-twin-cam-camshaft-650-lift","title":"STAR Racing Thrasher 650 Twin Cam Camshaft - .650 Lift","description":"\u003cp\u003e\u003cu\u003e\u003cstrong\u003eStar Thrasher 650 Twin Cam Camshaft — .650 Lift \u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe most aggressive cam in the Star Twin Cam lineup — built for high-performance street riding and track days.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003ePart Description\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStar Thrasher 650\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the top of the Star Twin Cam camshaft range — a high-performance, high-lift cam engineered for riders who demand more from their 2007-and-up chain-drive Twin Cam engine on the street and on the track. With .650\" lift and a TDC lift of .189 x .189, the Thrasher pushes well beyond the territory of bolt-on performance and into serious build territory. Aftermarket pistons and springs are required, and piston-to-valve clearance must be verified by an experienced builder before startup. Done right, the Thrasher delivers the kind of aggressive, high-output performance that serious Twin Cam builds are built around. Recommended install with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/ajspartsdepot.com\/products\/star-racing-655-lift-twin-cam-valve-spring-kit-7mm\" target=\"_blank\" rel=\"noopener\"\u003eStar .655 Lift Spring Kit (\u003cstrong\u003eTC20-20350)\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv id=\":28j\" class=\"Am aiL Al editable LW-avf tS-tW tS-tY\" role=\"textbox\" spellcheck=\"false\"\u003e\n\u003ch2 class=\"gmail-s__5DGWeQ gmail-oHJSrAT---typography-11-runningText gmail-oHJSrAT---priority-7-primary gmail-_HOcyB gmail-x4nptw gmail-sxbtulv gmail-ftb6e2\"\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"gmail-rah-static gmail-rah-static--height-auto\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"gmail-ulKuLk gmail-QfrfFD gmail-cell\"\u003e\n\u003cdiv class=\"gmail-zp8uy2 gmail-veCD9x\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMost powerful cam in the Star Twin Cam lineup — \u003c\/strong\u003eengineered for maximum performance\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.650 lift — \u003c\/strong\u003ehighest lift available in the Star Twin Cam range\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.189 TDC lift — \u003c\/strong\u003eaggressive lobe profile for peak airflow and power output\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with any Twin Cam displacement — \u003c\/strong\u003escales across all build sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for high-performance touring and occasional track use —\u003c\/strong\u003e built for riders who want both \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain-drive design — \u003c\/strong\u003efits 2007-and-up Twin Cam engines\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift\u003c\/td\u003e\n\u003ctd\u003e.650\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIVC\u003c\/td\u003e\n\u003ctd\u003e40°, 240 x 260 duration  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTDC Lift\u003c\/td\u003e\n\u003ctd\u003e.189 x .189\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRPM Range\u003c\/td\u003e\n\u003ctd\u003e2,500 - 6,500 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 class=\"gmail-s__5DGWeQ gmail-oHJSrAT---typography-11-runningText gmail-oHJSrAT---priority-7-primary gmail-_HOcyB gmail-x4nptw gmail-sxbtulv gmail-ftb6e2\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"gmail-s__5DGWeQ gmail-oHJSrAT---typography-11-runningText gmail-oHJSrAT---priority-7-primary gmail-_HOcyB gmail-x4nptw gmail-sxbtulv gmail-ftb6e2\"\u003ePerformance and Ride Feel\u003c\/h2\u003e\n\u003cdiv class=\"gmail-rah-static gmail-rah-static--height-auto\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"gmail-ulKuLk gmail-QfrfFD gmail-cell\"\u003e\n\u003cdiv class=\"gmail-zp8uy2 gmail-veCD9x\"\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent mid-range power and throttle response\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong pull from 2200 RPM all the way to redline\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBest For: Street \u0026amp;Touring performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"gmail-s__5DGWeQ gmail-oHJSrAT---typography-11-runningText gmail-oHJSrAT---priority-7-primary gmail-_HOcyB gmail-x4nptw gmail-sxbtulv gmail-ftb6e2\"\u003eFitment and Install Notes\u003c\/h2\u003e\n\u003cdiv class=\"gmail-rah-static gmail-rah-static--height-auto\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"gmail-ulKuLk gmail-QfrfFD gmail-cell\"\u003e\n\u003cdiv class=\"gmail-zp8uy2 gmail-veCD9x\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eValve Springs\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eLifter Guides\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\n\u003cp\u003eTwin Cam 103 - 117 engines\u003c\/p\u003e\n\u003c\/th\u003e\n\u003ctd\u003e2007+\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/ajspartsdepot.com\/products\/star-racing-655-lift-twin-cam-valve-spring-kit-7mm\" target=\"_blank\" rel=\"noopener\"\u003eTC20-20350 recommended\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStock \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePush Rods\u003c\/strong\u003e and \u003cstrong\u003eLifters\u003c\/strong\u003e can be stock. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExhaust pairing matters\u003c\/strong\u003e: Star Cams will perform with all pipe configurations, but exhaust selection has a meaningful impact on results. Short exhaust systems create sound wave differentials that negatively affect low-RPM tune quality — a condition that cannot be fully corrected through tuning alone. For the smoothest low-end torque curve, a long 2-into-1 exhaust is strongly recommended. Trusted options include \u003cstrong\u003eD\u0026amp;D\u003c\/strong\u003e, \u003cstrong\u003eFuel Moto\u003c\/strong\u003e, \u003cstrong\u003eBassani\u003c\/strong\u003e, \u003cstrong\u003eThunderHeader\u003c\/strong\u003e, and \u003cstrong\u003eKrome Werks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePiston-to-valve clearance must be verified\u003c\/strong\u003e by an experienced builder prior to startup — this is a critical pre-installation step, not optional. Experienced installer strongly recommended — this is not a standard bolt-on installation. \u003cstrong\u003eProfessional tuning required\u003c\/strong\u003e for best results. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"gmail-YInLPU\"\u003e\n\u003cli class=\"gmail-KHWbzo gmail-undefined\"\u003e\n\u003cdiv\u003e\n\u003cul class=\"gmail-YInLPU\"\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"gmail-YInLPU\"\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e**Please note that we cannot ship cams to California. **\u003c\/p\u003e","brand":"AJ's Parts Depot","offers":[{"title":"Default Title","offer_id":62997019787635,"sku":"TC650C","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/8220\/3251\/files\/2dc5f7_c330f6ad279d4eeb8dc23dcab8d81ea6_mv2.avif?v=1781732026","url":"https:\/\/ajspartsdepot.com\/products\/star-racing-thrasher-650-twin-cam-camshaft-650-lift","provider":"AJ's Parts Depot","version":"1.0","type":"link"}