{"product_id":"s-s-steel-breather-valve-std-36-47-big-twin-nu","title":"S\u0026S, steel breather valve. STD — 36-47 Big Twin (NU)","description":"High quality steel breather valve for use as stock or high performance replacement.   Note: S\u0026amp;S breather valves come with elongated breather holes to increase the duration of the vacuum; allowing more oil to be drawn from the cylinder heads. This has no disadvantage in any model year; either stock or Big Inch motor.  Note: that steel breathers require steel breather valve spacers. Plastic breathers require plastic spacers. Do not intermix steel and plastic parts.  Note: A .030\"oversize breather is available to save worn or damaged crankcases as 970603. A JIMS breather hole reamer (MCS 978343) will ream the damaged hole to +.030\" so a +.030\" breather can be used.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 36-47 Big Twin (NU)\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":54307666002247,"sku":"970602","price":186.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/970602k.jpg?v=1784469783","url":"https:\/\/www.chopperessentials.com\/products\/s-s-steel-breather-valve-std-36-47-big-twin-nu","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}