{"product_id":"manley-big-block-ford-429-460-1-880in-diameter-5-655in-length-race-master-exhaust-valves-set-of-8","title":"Manley Race Master Exhaust Valves – Big Block Ford 429 - 460 1.880\" Diameter","description":"\u003cp\u003eBuilt around the requirements of Big Block Ford 429 - 460 1.880\"; Diameter, this Race Master exhaust valve family gives engine builders a focused way to select the dimensions their cylinder-head combination calls for. 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\u003eThe correct Big Block Ford 429 - 460 1.880\"; Diameter valve is the one that matches the finished head. Stem clearance, seat contact, installed height, spring package, and keeper location should all be checked during assembly.\u003c\/p\u003e\u003ch3\u003eKey Product Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Big Block Ford 429 - 460 1.880\"; Diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManley Series:\u003c\/strong\u003e Race Master\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Position:\u003c\/strong\u003e Exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family Detail:\u003c\/strong\u003e Race Series application focus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 11591-8\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":50184581153018,"sku":"MAN11591-8","price":188.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/72d30868f20b252dc91efd1c08cf3bc8L_90bac7b3-96b5-404b-bb26-280f3a966510.jpg?v=1787802418","url":"https:\/\/lgcracing.com\/products\/manley-big-block-ford-429-460-1-880in-diameter-5-655in-length-race-master-exhaust-valves-set-of-8","provider":"Legacy Racing","version":"1.0","type":"link"}