{"product_id":"exhaust-valve-fits-evolution-big-twin-1984-1999-high-flow","title":"Exhaust Valve. Fits Evolution Big Twin 1984-1999. High Flow","description":"\u003cp\u003e* Highest flow level on the market. \u003c\/p\u003e\n\u003cp\u003e* One piece forged racing grade stainless steel alloy.\u003c\/p\u003e\n\u003cp\u003e* hard black nitride finish.\u003c\/p\u003e\n\u003cp\u003e* bearing quality hardened tip at the end of the stem to prevent premature wear with high-lift applications. \u003c\/p\u003e\n\u003cp\u003e* 45o angle below the lock groove to facilitate the valve seal installation.\u003c\/p\u003e\n\u003cp\u003e* Heat treated with a special process.\u003c\/p\u003e\n\u003cp\u003e* stem is centerless ground for longer life. \u003c\/p\u003e\n\u003cp\u003e* Dished Valve\u003c\/p\u003e\n\u003cp\u003eHead Dia = 1.610\"\u003c\/p\u003e\n\u003cp\u003eOAL = 4.525\"\u003c\/p\u003e\n\u003cp\u003eStem Dia = 0.3106\"\u003c\/p\u003e","brand":"AV\u0026V","offers":[{"title":"Default Title","offer_id":48442120667358,"sku":"AV-1610D","price":56.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/7951\/files\/AV-1610D.jpg?v=1784197771","url":"https:\/\/ironandresin.com.au\/products\/exhaust-valve-fits-evolution-big-twin-1984-1999-high-flow","provider":"Iron \u0026 Resin Garage","version":"1.0","type":"link"}