{"product_id":"manley-chevrolet-5-3l-l83-exhaust-valve-kit-1-560in-head-dia-5-208in-o-a-length-0-3136in-stem","title":"Manley Chevrolet 5.3L L83 Exhaust Valve Kit - 1.560in Head Dia. 5.208in O\/A Length, 0.3136in 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":44029510025338,"sku":"MAN12359-8","price":199.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1846\/6469\/files\/6e7430401b0f4d069938bb54652f43b7L_bb9e7d7d-cd12-47ba-b710-4dbe36d35aec.jpg?v=1768911839","url":"https:\/\/tune2mod.com\/products\/manley-chevrolet-5-3l-l83-exhaust-valve-kit-1-560in-head-dia-5-208in-o-a-length-0-3136in-stem","provider":"Tune2mod Performance","version":"1.0","type":"link"}