{"product_id":"manley-titanium-exhaust-valve-kit-chevrolet-big-block-m-m-x20","title":"Manley Titanium Exhaust Valves – Chevrolet Big Block - M\u0026M X20 | Part #12175B-8","description":"\u003cp\u003eThis Titanium exhaust valve listing is organized specifically for Chevrolet Big Block - M\u0026amp;M X20, with the available dimensions presented as selectable configurations for easier cylinder-head planning. The parent listing is distinguished by \u003cstrong\u003ePart #12175B-8\u003c\/strong\u003e, which should be cross-checked against the rest of the engine combination.\u003c\/p\u003e\u003cp\u003eThe correct Chevrolet Big Block - M\u0026amp;M X20 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 Chevrolet Big Block - M\u0026amp;M X20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManley Series:\u003c\/strong\u003e Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Position:\u003c\/strong\u003e Exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitle Specification:\u003c\/strong\u003e Part #12175B-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 12175B-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":50207003345146,"sku":"MAN12175B-8","price":1435.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/52b2ea542bf80c1f7b89774284afdc6cL_dcf5a662-e3fb-42d6-bfa4-14784cff8662.jpg?v=1787978987","url":"https:\/\/lgcracing.com\/products\/manley-titanium-exhaust-valve-kit-chevrolet-big-block-m-m-x20","provider":"Legacy Racing","version":"1.0","type":"link"}