{"product_id":"manley-pontiac-400intake-valves","title":"Manley Race Series Intake Valves – Pontiac 400","description":"\u003cp\u003eEngine builders working with Pontiac 400 can use this Race Series intake valve family to choose the required valve dimensions while staying within the correct Manley application group. The selectable configurations in this family are separated by head diameter, overall length, stem diameter, so the final SKU should be chosen from the dimensional requirements of the build.\u003c\/p\u003e\u003cp\u003eIf the Pontiac 400 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 Pontiac 400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManley Series:\u003c\/strong\u003e Race Series\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 Race Series application focus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Numbers:\u003c\/strong\u003e Vary by selected configuration (2 SKUs in this parent family)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAvailable Configurations\u003c\/h3\u003e\u003cp\u003eThis parent listing contains multiple selectable Manley SKUs. Choose the configuration that matches the measured engine or cylinder-head specification.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 2.110in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 5.100in, 5.215in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Diameter:\u003c\/strong\u003e 0.3415in\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\u003eUse the finished cylinder-head setup as the authority for selection. Oversize valves or alternate lengths may require machining and can affect installed height and valvetrain geometry.\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":"2.110in \/ 5.100in \/ 0.3415in","offer_id":50206927683834,"sku":"MAN11364-8","price":188.69,"currency_code":"USD","in_stock":true},{"title":"2.110in \/ 5.215in \/ 0.3415in","offer_id":50206927716602,"sku":"MAN11352-8","price":188.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/60a800d0c1f947d0f60d7b7f5af0f3caL.jpg?v=1787802167","url":"https:\/\/lgcracing.com\/products\/manley-pontiac-400intake-valves","provider":"Legacy Racing","version":"1.0","type":"link"}