{"product_id":"manley-11246-8-valve-intake-valve-gen-ii-48mm","title":"Manley 11246-8 - Valve - Int., S\/D, 48.0mm \/ 1.890 in. Max Head Diameter","description":"\u003cp\u003eManley 11246-8 - Valve - Int., S\/D, 48.0mm \/ 1.890 in. Max Head Diameter\u003c\/p\u003e\u003cp\u003eManley Valve - Int., S\/D, 48.0mm \/ 1.890 in. Max Head Diameter\u003c\/p\u003e\u003cp\u003eMax Head Diameter:  48.0mm \/ 1.890in. - Use Custom Order Form or call to order\u003c\/p\u003e\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\u003eHard Tips and Hardened Grooves\u003c\/li\u003e\n\u003cli\u003eNo Need for Inserted Tips or Wear Caps\u003c\/li\u003e\n\u003cli\u003eTight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.\u003c\/li\u003e\n\u003cli\u003eManley Performance can custom build vavles for any possible combination with a short lead time. Please call your sales representative.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eEngine Intake Valve\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine Type\u003c\/strong\u003e: \u003cspan\u003eICE\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Quantity\u003c\/strong\u003e: \u003cspan\u003e8\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Type\u003c\/strong\u003e: \u003cspan\u003eIntake\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaximum Head Diameter\u003c\/strong\u003e: \u003cspan\u003e48.0mm \/ 1.890\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: \u003cspan\u003e6.96mm \/ .2740 in.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaximum Valve Length\u003c\/strong\u003e: \u003cspan\u003e121.9mm \/ 4.800\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Stem Diameter\u003c\/strong\u003e: \u003cspan\u003e6.96mm \/ .2740 in.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Manley","offers":[{"title":"Default Title","offer_id":49936810606870,"sku":"BBPB-11246-8","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/0878\/9782\/files\/1234558071174264e9f4b44e854df8cc.jpg?v=1758858872","url":"https:\/\/www.cspracing.com\/products\/manley-11246-8-valve-intake-valve-gen-ii-48mm","provider":"Complete Street Performance","version":"1.0","type":"link"}