{"product_id":"s-s-rocker-arm-shaft-kit-kucklehead-kn","title":"S\u0026S, rocker arm \u0026 shaft kit, Kucklehead \u0026 KN","description":"Stock 1:1 rocker ratio. Will fit stock 40-47 Knucklehead and is stock replacement for S\u0026amp;S KN-series engines. Note: S\u0026amp;S rocker arms \u0026amp; shafts must be used as a kit. S\u0026amp;S rocker arms are not compatible with stock shafts. S\u0026amp;S shafts are not compatible with stock rocker arms. Note: See 531976 for replacement rocker set only for this 531975 kit.Note: Special Order Product only. To order please contact your MCS sales representative.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 40-47 (NU) Knucklehead; all S\u0026amp;S KN (Knuckle style) engines\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307877617991,"sku":"531975","price":1572.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/531975k.jpg?v=1784483908","url":"https:\/\/www.chopperessentials.com\/products\/s-s-rocker-arm-shaft-kit-kucklehead-kn","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}