{"product_id":"supertech-hivn-1050-8-intake-valve-set-honda-cr-z","title":"Supertech Honda CR-Z 1.5L LEA\/L15A Black Nitrided Intake Valve -Set of 8","description":"\u003ch4\u003eGive Your CR-Z Head A Fresh Set Of Intake Valves That Hold Up\u003c\/h4\u003e\n\u003cp\u003eThe Supertech HIVN-1050-8 is a set of eight black nitrided stainless steel intake valves engineered for the Honda LEA and L15A 1.5L SOHC engine used in the 2010-2015 Honda CR-Z. The black nitride surface treatment adds a hardened wear layer over the stainless base, giving these valves better resistance to guide wear than untreated stock valves during a head rebuild.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set of eight black nitrided intake valves for a full engine rebuild\u003c\/li\u003e\n\u003cli\u003eStainless steel construction with black nitride surface hardening\u003c\/li\u003e\n\u003cli\u003eSwirl polished valve heads to support consistent intake flow\u003c\/li\u003e\n\u003cli\u003ePrecision ground stem for stable guide clearance\u003c\/li\u003e\n\u003cli\u003eHardened valve tip for long term wear resistance\u003c\/li\u003e\n\u003cli\u003eSingle groove retainer design compatible with OEM style springs and retainers\u003c\/li\u003e\n\u003cli\u003e28mm standard head diameter dish face matches factory port geometry\u003c\/li\u003e\n\u003cli\u003eHIVN-1050-8 direct fit replacement, no head modification required for stock builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment Table\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010-2015\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCR-Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eHIVN-1050-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eIntake\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e8 valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter\u003c\/td\u003e\n\u003ctd\u003e28mm (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Diameter\u003c\/td\u003e\n\u003ctd\u003e5.48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e118.85mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless steel, black nitride finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFace Type\u003c\/td\u003e\n\u003ctd\u003eDish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGroove Type\u003c\/td\u003e\n\u003ctd\u003eSingle groove\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Codes\u003c\/td\u003e\n\u003ctd\u003eLEA, L15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eNot published by manufacturer for this set configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e8x HIVN-1050-8 black nitrided intake valves\u003c\/li\u003e\n\u003cli\u003eManufacturer spec sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout Supertech\u003c\/h4\u003e\n\u003cp\u003eSupertech Performance designs and manufactures valvetrain components for import and domestic engine platforms, supplying engine builders and performance shops with valves, springs, retainers, and related hardware machined to tight tolerances for both daily driven and track focused engines.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstrong\u003eWhat is the HIVN-1050-8?\u003c\/strong\u003e\n\u003cp\u003eThe HIVN-1050-8 is a set of eight black nitrided intake valves from Supertech built specifically for the Honda LEA and L15A 1.5L engine used in the 2010-2015 Honda CR-Z. The black nitride surface treatment improves wear resistance over untreated stainless valves.\u003c\/p\u003e\n\u003cstrong\u003eDoes the HIVN-1050-8 fit other Honda models with the L15A engine?\u003c\/strong\u003e\n\u003cp\u003eThis listing is verified for the CR-Z LEA\/L15A application. Confirm your exact engine code before ordering if installing in another Honda model that shares part of the L15A family.\u003c\/p\u003e\n\u003cstrong\u003eCan I reuse my stock valve springs and retainers with the HIVN-1050-8?\u003c\/strong\u003e\n\u003cp\u003eStock springs and retainers generally work with the HIVN-1050-8 single groove design, but a head builder should verify installed height and seat pressure during any valve job regardless of valve brand.\u003c\/p\u003e\n\u003cstrong\u003eWhat coating is used on the HIVN-1050-8 valves?\u003c\/strong\u003e\n\u003cp\u003eThese valves use a black nitride surface treatment over a stainless steel base, which adds a hardened wear layer that helps the valve hold up better in the guide over time.\u003c\/p\u003e\n\u003cstrong\u003eIs the HIVN-1050-8 a good match for a stock power CR-Z build?\u003c\/strong\u003e\n\u003cp\u003eYes. Many owners install black nitrided intake valves during a routine head rebuild even on stock power builds simply for the improved wear resistance over factory valves.\u003c\/p\u003e\n\u003cstrong\u003eDoes installing the HIVN-1050-8 require machining the head?\u003c\/strong\u003e\n\u003cp\u003eNo modification is required on a stock LEA\/L15A head. The 28mm standard head diameter and dish face match factory port geometry, so this is a direct fit replacement.\u003c\/p\u003e\n\u003cstrong\u003eWhat is the stem diameter of the HIVN-1050-8?\u003c\/strong\u003e\n\u003cp\u003eThe stem diameter is 5.48mm, matching the factory LEA\/L15A valve guide specification.\u003c\/p\u003e\n\u003cstrong\u003eHow long is the HIVN-1050-8 intake valve?\u003c\/strong\u003e\n\u003cp\u003eEach valve measures 118.85mm in overall length.\u003c\/p\u003e\n\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRemove the cylinder head and disassemble the valvetrain following factory service procedures\u003c\/li\u003e\n\u003cli\u003eInspect and measure valve guides for wear before installing new valves\u003c\/li\u003e\n\u003cli\u003eCut or verify valve seats to the correct angle and contact width for the new valve faces\u003c\/li\u003e\n\u003cli\u003eInstall the HIVN-1050-8 valves and confirm smooth movement through the guides\u003c\/li\u003e\n\u003cli\u003eReinstall springs, retainers, and seals, then set installed height and spring pressure\u003c\/li\u003e\n\u003cli\u003eCheck for coil bind and retainer to seal clearance before reassembling the head\u003c\/li\u003e\n\u003cli\u003eTorque the head and valvetrain components to factory specification\u003c\/li\u003e\n\u003cli\u003eRun a leak down and compression check after break in\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":46273593114703,"sku":"SPTHIVN-1050-8","price":229.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/supertech-hivn-1050-8-intake-valve-set-clean_a98f5704-6f45-4d2b-b1c1-a5bd26870617.webp?v=1785286983","url":"https:\/\/www.blackopsautoworks.com\/products\/supertech-hivn-1050-8-intake-valve-set-honda-cr-z","provider":"Black Ops Auto Works","version":"1.0","type":"link"}