{"product_id":"manley-big-block-chevrolet-int-2-190-head-dia-5-218-o-a-length-3715-stem-race-flo-valve-single","title":"Manley Big Block Chevrolet Int. 2.190 Head Dia. 5.218 O\/A Length .3715 Stem Race Flo Valve (Single)","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":51501046268203,"sku":"MAN11528-1","price":23.58,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/3645\/4465\/files\/05640e0afd9583139cfe4424d625c826_fcc4d069-1f6b-4fd5-a335-b5e3b7781a1f.jpg?v=1763051333","url":"https:\/\/www.burton-racing.com\/products\/manley-big-block-chevrolet-int-2-190-head-dia-5-218-o-a-length-3715-stem-race-flo-valve-single","provider":"Burton-Racing","version":"1.0","type":"link"}