{"product_id":"nr-rocker-arms-roller-aluminum-full-roller-212-hemi-predator-pair","title":"NR Rocker Arms, Roller, Aluminum Full Roller, 212 Hemi Predator, Pair","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/rocker-arms\" title=\"Racing Rocker Arms for Honda GX Series Engones\" style=\"background-color: rgb(255, 255, 0);\"\u003eRocker Arms\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003ci\u003eNR Racing\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAluminum Full Roller Rockers for the Hemi Head | Choice of 1.2 or 1.3 Ratio\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eThese rockers are crafted using aircraft-grade billet aluminum and feature replaceable steel roller tips. New steel shafts and roller bearings included.\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-tested to 10,000rpm and proven to increase horsepower\u003c\/li\u003e\n\u003cli\u003eDue to canted valve arrangement, Hemis may have valve-to-piston clearance issue with high-lift cam, especially with the 1.3 ratio.\u003c\/li\u003e\n\u003cli\u003eThese rocker arms require shorter pushrods (typically 5.260 or 5.340, depending on cam and head milling).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eThese are designed to work with standard length or +.070\" valves. They are not recommended for the +.230\" valves. May require valve cover spacer or minor grinding on valve cover grinder for clearance.\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"1.2 Ratio","offer_id":43060103151675,"sku":"NR-NRROCK-ALUMHEMI","price":129.0,"currency_code":"USD","in_stock":true},{"title":"1.3 Ratio","offer_id":43060103184443,"sku":"NR-NRROCK-ALUMHEMI","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/NRROCK-ALUMHEMI-2.jpg?v=1764893698","url":"https:\/\/gtcracing.com\/products\/nr-rocker-arms-roller-aluminum-full-roller-212-hemi-predator-pair","provider":"GTC Racing","version":"1.0","type":"link"}