{"product_id":"manley-dart-big-block-pro-1-stock-length-11-32in-stem-diameter-severe-duty-intake-valves-set-of-8","title":"Manley Severe Duty Intake Valves – Dart Big Block Pro 1 Stock Length 11\/32\" Stem Diameter","description":"\u003cp\u003eManley packages these Severe Duty intake valves for Dart Big Block Pro 1 Stock Length 11\/32\"; Stem Diameter around the measurements that matter during cylinder-head setup, rather than treating every valve size as a separate shopping path. Use the exact Manley part number shown below to distinguish this product from similar valves offered for the same or related engine family.\u003c\/p\u003e\u003cp\u003eFor Dart Big Block Pro 1 Stock Length 11\/32\"; Stem Diameter, valve diameter changes can alter seat work and chamber\/shrouding relationships, while alternate overall lengths can change installed height and rocker geometry.\u003c\/p\u003e\u003ch3\u003eKey Product Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Dart Big Block Pro 1 Stock Length 11\/32\"; Stem Diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManley Series:\u003c\/strong\u003e Severe Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Position:\u003c\/strong\u003e Intake\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family Detail:\u003c\/strong\u003e Severe Duty application focus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 11817-8\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Quantity\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSet of 8 valves.\u003c\/strong\u003e The selected configuration is supplied as a 8-piece valve package. This quantity applies to the selected Manley SKU family shown on this product page.\u003c\/p\u003e\u003ch3\u003eSelection \u0026amp; Fitment Notes\u003c\/h3\u003e\u003cp\u003eValve fitment should be verified from the cylinder head itself; check the required head size, stem size, overall length, seat work, and valvetrain geometry rather than relying on engine name alone.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProfessional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.\u003c\/em\u003e\u003c\/p\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":50207060623610,"sku":"MAN11817-8","price":301.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/639c017773af16048d25285e221903acL_e4e5dde7-95ae-4a11-94b6-12cc4589e683.jpg?v=1787978860","url":"https:\/\/lgcracing.com\/products\/manley-dart-big-block-pro-1-stock-length-11-32in-stem-diameter-severe-duty-intake-valves-set-of-8","provider":"Legacy Racing","version":"1.0","type":"link"}