{"product_id":"manley-valve-exhaust-valve-bbc-p-f-1-726","title":"Manley Valve - Exhaust Valve-BBC P\/F 1.725","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.\r\n\u003cul\u003e\t\u003cli\u003eProven fatigue strength for extreme performance\u003c\/li\u003e\r\n\t\u003cli\u003eChrome stems and hard tips enhance durability\u003c\/li\u003e\r\n\t\u003cli\u003eExotic alloys for superior tensile strength, reliability, and longevity\u003c\/li\u003e\r\n\t\u003cli\u003eSwirl polishing and machined faces improved airflow\/optimized efficiency\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eAttributes:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eBrand Name: \u003c\/b\u003eManley\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eGTIN: \u003c\/b\u003e00807298053639\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEngine: \u003c\/b\u003eBig Block\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEngine Type: \u003c\/b\u003eICE\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEngine Valve Quantity: \u003c\/b\u003e8\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eHead Diameter: \u003c\/b\u003e1.725\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eIndustry: \u003c\/b\u003eAutomotive\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eMake: \u003c\/b\u003eChevrolet\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eMargin Width: \u003c\/b\u003e0.085\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eO\/A Length: \u003c\/b\u003e5.374\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eOut of Stock Message: \u003c\/b\u003eCall for Availability\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eProduct Market: \u003c\/b\u003eDomestic\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eProduct Type: \u003c\/b\u003eEngine Exhaust Valve Kit\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eSeat Width: \u003c\/b\u003e0.100\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eStem Diameter: \u003c\/b\u003e0.3715\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eTip Length: \u003c\/b\u003e0.220\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eTop of Head: \u003c\/b\u003e5 Degree Dish\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eUnderhead Angle: \u003c\/b\u003ePro Flo: 10.00\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eUnderhead Radius: \u003c\/b\u003e3\/8\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Head Diameter: \u003c\/b\u003e1.725\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Head Shape: \u003c\/b\u003e5 Degree Dish\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Length: \u003c\/b\u003e5.374\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Material: \u003c\/b\u003eStainless Steel\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Quantity: \u003c\/b\u003e8\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Series: \u003c\/b\u003eSevere Duty? Series\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Stem Diameter: \u003c\/b\u003e0.3715\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Sub-Series: \u003c\/b\u003ePro Flo\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Tip Length: \u003c\/b\u003e0.220\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eValve Type: \u003c\/b\u003eExhaust\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eExtended Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eCountry of Origin: \u003c\/b\u003eChina\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eEmissions : \u003c\/b\u003eRacing or Pre-Emissions Use Only\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003ePacking Information:\u003c\/h3\u003e\r\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\r\n\u003cli\u003e\n\u003cb\u003eQuantity of Each: \u003c\/b\u003e1\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003ePackage UOM: \u003c\/b\u003eEA\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eDimension: \u003c\/b\u003e11.75 x 6.75 x 2.5 inches\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cb\u003eWeight: \u003c\/b\u003e4 POUNDS\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cdiv id=\"sema-product-fitment\" class=\"product__accordion accordion fitment\"\u003e\u003c\/div\u003e","brand":"Manley","offers":[{"title":"Default Title","offer_id":54858411311396,"sku":"BBPB-11835-8","price":576.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/4232\/5796\/files\/11835-ANG_2000x2000_112ba70c-f4e7-4d4b-91d5-aec86455c125.jpg?v=1781425088","url":"https:\/\/autoshopping24.com\/en-ca\/products\/manley-valve-exhaust-valve-bbc-p-f-1-726","provider":"autoshopping24.com","version":"1.0","type":"link"}