{"product_id":"manley-valve-exhaust-valve-s-d-1-625-100","title":"Manley Valve - Exhaust, Valve-S\/D 1.625,+.100","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","offers":[{"title":"Default Title","offer_id":48123349991672,"sku":"BBPB_11537-8","price":301.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1538\/7640\/files\/public_ba2bf40a-036d-407d-8a1c-037068718d68.jpg?v=1774054392","url":"https:\/\/nadersautosupply.com\/products\/manley-valve-exhaust-valve-s-d-1-625-100","provider":"Nader's Auto Supply","version":"1.0","type":"link"}