{"product_id":"manley-chevrolet-1-600-dia-dish-5-026-o-a-length-severe-duty-exhaust-valves-set-of-8","title":"Manley Chevrolet 1.600 Dia Dish 5.026 O\/A Length Severe Duty Exhaust Valves (Set of 8)","description":"Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":51625279095080,"sku":"MAN11823-8","price":301.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0952\/0218\/1416\/files\/fec5f7dba71aff461c53f7b003c4211fL_440fe2a6-6382-4da6-b938-bf2e54abd4b5.jpg?v=1775418214","url":"https:\/\/shop.paradigm-automotive.com\/products\/manley-chevrolet-1-600-dia-dish-5-026-o-a-length-severe-duty-exhaust-valves-set-of-8","provider":"Paradigm Automotive \u0026 Performance Shop","version":"1.0","type":"link"}