{"product_id":"manley-chevrolet-small-block-intake-valves","title":"Manley Severe Duty Intake Valves – Chevrolet Small Block","description":"\u003cp\u003eThis Severe Duty intake valve listing is organized specifically for Chevrolet Small Block, with the available dimensions presented as selectable configurations for easier cylinder-head planning. 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\u003eFor Chevrolet Small Block, valve diameter changes can alter seat work and chamber\/shrouding relationships, while alternate overall lengths can change installed height and rocker geometry.\u003c\/p\u003e\u003ch3\u003eKey Product Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chevrolet Small 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\u003eProduct Family Detail:\u003c\/strong\u003e Severe Duty application focus\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 (47 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 2.125in, 1.720in, 2.200in, 2.180in, 2.100in, 2.050in, 2.020in, 1.940in, 2.055in, 2.080in, 2.150in, 1.785in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 19 selectable values (including 5.035in, 4.911in, 5.110in, 5.010in, 4.935in, 5.011in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Diameter:\u003c\/strong\u003e 0.3133in, 0.3415in, 0.3110in, 0.3420in, 0.2740in\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\u003eBefore purchase, compare the selected valve dimensions with your head manufacturer or engine builder’s specification, including stem diameter, valve length, seat diameter, and keeper arrangement.\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":"2.125in \/ 5.035in \/ 0.3133in","offer_id":50206922211578,"sku":"MAN12346-8","price":311.48,"currency_code":"USD","in_stock":true},{"title":"1.720in \/ 4.911in \/ 0.3415in","offer_id":50206922244346,"sku":"MAN12342-8","price":311.48,"currency_code":"USD","in_stock":true},{"title":"2.200in \/ 5.110in \/ 0.3110in","offer_id":50206922277114,"sku":"MAN12328-8","price":202.55,"currency_code":"USD","in_stock":true},{"title":"2.200in \/ 5.010in \/ 0.3110in","offer_id":50206922309882,"sku":"MAN12326-8","price":202.55,"currency_code":"USD","in_stock":true},{"title":"2.180in \/ 5.110in \/ 0.3110in","offer_id":50206922342650,"sku":"MAN12324-8","price":202.55,"currency_code":"USD","in_stock":true},{"title":"2.180in \/ 5.010in \/ 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