{"product_id":"manley-chevrolet-big-block-exhaust-valve-kit-1-880in-head-dia-5-422in-o-a-length-0-3715in-stem","title":"Manley Chevrolet Big Block Exhaust Valve Kit - 1.880in Head Dia. 5.422in O\/A Length, 0.3715in Stem","description":"\u003cp\u003eStainless 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.\u003c\/p\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":47146715250855,"sku":"MAN11509-8","price":196.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/60a800d0c1f947d0f60d7b7f5af0f3caL_0e5d7252-2e27-4036-a60d-33798934cf40.jpg?v=1760843591","url":"https:\/\/www.straightsiximports.com\/en-us\/products\/manley-chevrolet-big-block-exhaust-valve-kit-1-880in-head-dia-5-422in-o-a-length-0-3715in-stem","provider":"Straight Six Imports","version":"1.0","type":"link"}