{"product_id":"manley-pontiac-400-exhaust-valve-kit-1-660in-head-dia-5-230in-o-a-length-0-3415in-stem","title":"Manley Pontiac 400 Exhaust Valve Kit - 1.660in Head Dia. 5.230in O\/A Length, 0.3415in Stem","description":"Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":44789277786146,"sku":"MAN11353-8","price":188.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/1231\/7218\/files\/72d30868f20b252dc91efd1c08cf3bc8L_ea0f54b3-52c5-4ebf-bcf9-a7f4b6aa9769.jpg?v=1769849781","url":"https:\/\/shopjdm.com\/products\/manley-pontiac-400-exhaust-valve-kit-1-660in-head-dia-5-230in-o-a-length-0-3415in-stem","provider":"ShopJDM","version":"1.0","type":"link"}