{"product_id":"manley-chevrolet-big-block-1-900in-head-dia-5-422in-o-a-length-race-series-exhaust-valve-single","title":"Manley Chevrolet Big Block 1.900in Head Dia. 5.422in O\/A Length Race Series Exhaust 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":44789323300898,"sku":"MAN11707-1","price":23.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/1231\/7218\/files\/60a800d0c1f947d0f60d7b7f5af0f3caL_d7697a53-070c-43c5-8b39-a2c9e44d2913.jpg?v=1769850086","url":"https:\/\/shopjdm.com\/products\/manley-chevrolet-big-block-1-900in-head-dia-5-422in-o-a-length-race-series-exhaust-valve-single","provider":"ShopJDM","version":"1.0","type":"link"}