{"product_id":"tfc-high-power-cam-gy6","title":"TFC S-1 High Power Camshaft - GY6 Big Bore Builds","description":"\u003cp\u003eMaximize the power potential of your GY6 big-bore build with the \u003cstrong\u003eTFC Special S-1 High Angle Camshaft\u003c\/strong\u003e. Designed specifically for engines running 58.5mm to 63mm cylinder bores, the S-1 delivers 6mm of valve lift — significantly more than a stock cam — keeping the valves open longer and pushing them further to pull in more air and fuel on every stroke. The result is stronger mid-range and top-end power that a big bore cylinder alone can't fully unlock without a matching cam upgrade.\u003c\/p\u003e\u003cp\u003eThis is the cam to run when you've already installed a big bore kit and want to extract the full power it's capable of. Pairs well with a high-flow head, performance exhaust, and upjetted carburetor.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e6mm valve lift — significantly more than stock for stronger mid and top-end power\u003c\/li\u003e\n\u003cli\u003eHigh angle S-1 profile optimized for 58.5mm–63mm big bore cylinders\u003c\/li\u003e\n\u003cli\u003e34-tooth cam gear, 6002C3 bearing — direct drop-in for GY6 QMI\/QMJ 152\/157\u003c\/li\u003e\n\u003cli\u003eNot recommended for stock 57mm bore — designed for big bore builds\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan by TFC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Profile:\u003c\/strong\u003e TFC Special S-1 high angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Lift:\u003c\/strong\u003e 6mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Lobe Diameter:\u003c\/strong\u003e 26.75mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Lobe Diameter:\u003c\/strong\u003e 26.35mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Gear Teeth:\u003c\/strong\u003e 34\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Bearing:\u003c\/strong\u003e 6002C3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Fitment:\u003c\/strong\u003e 58.5mm–63mm cylinder bores\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in Taiwan by TFC\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003cp\u003eDesigned for \u003cstrong\u003eGY6 QMI\/QMJ 152\/157\u003c\/strong\u003e (125cc\/150cc) 4-stroke engines running big bore cylinders from 58.5mm to 63mm. Not recommended for stock 57mm bore engines — the aggressive lift profile is optimized for larger displacement builds.\u003c\/p\u003e\u003cblockquote\u003e\n\u003cstrong\u003eBuild Tip:\u003c\/strong\u003e The S-1 cam works best paired with a big bore cylinder (61mm–63mm), a high-flow or big valve head, performance exhaust, and an upjetted carburetor. Running a high-lift cam on a stock head with stock jetting will limit gains and may cause a lean condition at high RPM.\u003c\/blockquote\u003e\u003cp\u003eThis product is intended for off-road use only and is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.\u003c\/p\u003e","brand":"TFC","offers":[{"title":"Default Title","offer_id":67964627255617,"sku":"179-11","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/179-11_c953ae0e-04ec-40cd-941c-5f99079770da.webp?v=1792993071","url":"https:\/\/azscooterparts.com\/products\/tfc-high-power-cam-gy6","provider":"AZScooterParts","version":"1.0","type":"link"}