{"product_id":"manley-chevrolet-big-block-intake-valve-kit-2-250in-head-diameter-5-494in-overall-length-0-3110in-stem-2","title":"Manley Severe Duty Intake Valves – Chevrolet Big Block | 2.250\" Head | Part #12856-8","description":"\u003cp\u003eThis Severe Duty intake valve listing is organized specifically for Chevrolet Big Block, with the available dimensions presented as selectable configurations for easier cylinder-head planning. The parent listing is distinguished by \u003cstrong\u003e2.250\"; Head \/ Part #12856-8\u003c\/strong\u003e, which should be cross-checked against the rest of the engine combination.\u003c\/p\u003e\u003cp\u003eIf the Chevrolet Big Block cylinder head has been ported, fitted with oversized seats, or changed from its original valvetrain layout, confirm the required valve measurements after machining rather than using a stock-size assumption.\u003c\/p\u003e\u003ch3\u003eKey Product Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chevrolet Big Block\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\u003eTitle Specification:\u003c\/strong\u003e 2.250\"; Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitle Specification:\u003c\/strong\u003e Part #12856-8\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 12856-8\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\u003eConfirm head diameter, overall length, stem diameter, keeper\/groove style, seat compatibility, and installed-height requirements with your cylinder-head specification before ordering.\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":50207041847546,"sku":"MAN12856-8","price":311.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/6b213b97d04616668d76466e69297119L.jpg?v=1787979086","url":"https:\/\/lgcracing.com\/products\/manley-chevrolet-big-block-intake-valve-kit-2-250in-head-diameter-5-494in-overall-length-0-3110in-stem-2","provider":"Legacy Racing","version":"1.0","type":"link"}