{"product_id":"manley-ford-427-medium-hi-riser-tunnel-port-2-250-dia-dish-severe-duty-intake-valves-set-of-8","title":"Manley Ford 427 (Medium\/Hi Riser\/Tunnel Port) 2.250 Dia Dish Severe Duty Intake Valves (Set of 8)","description":"\u003cp\u003eManley 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.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSwirl polishing and machined faces improved airflow\/optimized efficiency\u003c\/li\u003e\n\u003cli\u003eExotic alloys for superior tensile strength, reliability, and longevity\u003c\/li\u003e\n\u003cli\u003eProven fatigue strength for extreme performance\u003c\/li\u003e\n\u003cli\u003eChrome stems and hard tips enhance durability\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":48320977174755,"sku":"MAN11804-8","price":340.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/5632\/6371\/files\/5f4b70fa0b8a870e0877005e4b8d1853_49ea07c4-d2f1-4224-ae19-edbdb21bc4b9.jpg?v=1772248836","url":"https:\/\/fast-world-problems.myshopify.com\/products\/manley-ford-427-medium-hi-riser-tunnel-port-2-250-dia-dish-severe-duty-intake-valves-set-of-8","provider":"Fast World Problems","version":"1.0","type":"link"}