{"product_id":"manley-ls-7-small-block-chevrolet-1-615-head-diameter-3136-stem-diameter-race-master-exhaust-valves-set-of-8","title":"Manley Race Master Exhaust Valves – LS7 Small Block Chevrolet 1.615 Head Diameter \/ .3136 Stem Diameter","description":"\u003cp\u003eBuilt around the requirements of LS7 Small Block Chevrolet 1.615 Head Diameter \/ .3136 Stem 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\u003eIf the LS7 Small Block Chevrolet 1.615 Head Diameter \/ .3136 Stem Diameter 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 LS7 Small Block Chevrolet 1.615 Head Diameter \/ .3136 Stem 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 11689-8\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":50207014715642,"sku":"MAN11689-8","price":202.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/fec5f7dba71aff461c53f7b003c4211fL_235d4789-907a-4f2a-948d-61b68b0d24ae.jpg?v=1787802551","url":"https:\/\/lgcracing.com\/products\/manley-ls-7-small-block-chevrolet-1-615-head-diameter-3136-stem-diameter-race-master-exhaust-valves-set-of-8","provider":"Legacy Racing","version":"1.0","type":"link"}