{"product_id":"gsc-p-d-nissan-vr30ddtt-28-5mm-head-std-97-5mm-long-super-alloy-exhaust-valve-set-of-12","title":"GSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Super Alloy Exhaust Valve - Set of 12","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e2245-12\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Super Alloy Exhaust Valve - Set of 12 | 2017-2024 Infiniti Q50 Q60 Nissan Z\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGSC Power-Division super alloy exhaust valves provide direct replacement for Nissan VR30DDTT engines in 2017+ Infiniti Q50, Q60, QX55, and 2023+ Nissan Z models. This set of 12 valves features 28.5mm head diameter and 97.5mm overall length with standard 6.98mm stem for seamless fit in high-boost twin-turbo V6 applications. Engine builders rely on these valves for their ability to handle extreme exhaust gas temperatures while maintaining flow and durability during prolonged high-RPM operation.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuper Alloy Material:\u003c\/strong\u003e Proprietary nickel-based alloy resists heat up to 1600°F common in turbocharged VR30DDTT engines ensuring longer life under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Dimensions:\u003c\/strong\u003e 28.50mm head diameter 97.50mm overall length 9.00mm tip standard 6.98mm stem diameter and 2.00mm margin for exact OEM-spec fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Forged Design:\u003c\/strong\u003e Forged construction eliminates weld failure points delivering strength for 8000+ RPM valvetrains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwirl Polished Head:\u003c\/strong\u003e Polished valve face and 3-angle seat interface boost exhaust flow by 15% over stock for quicker spool and power gains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Keeper Groove:\u003c\/strong\u003e Reinforced groove secures keepers firmly reducing valve train noise and improving retention at high lift\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eValve weight 52g each total set weight 1.8 lbs MPN 2245-12 designed for stock or upgraded valve seats and guides\u003c\/li\u003e\n\u003cli\u003eInspect guides and seats prior to installation to ensure compatibility with performance spring pressures\u003c\/li\u003e\n\u003cli\u003eSpecial order item handles with care to prevent bending during transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eSet exhaust valve lash to 0.011-0.013 inches hot per GSC specifications for optimal clearance\u003c\/li\u003e\n\u003cli\u003eCompatible with stock retainers and locks pair with GSC valve springs for high-lift cams\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2024\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eQ50\u003c\/td\u003e\n\u003ctd\u003e3.0t Luxe Pure Sensory Red Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2023\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eQ60\u003c\/td\u003e\n\u003ctd\u003e3.0t Luxe Premium Red Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2024\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eQX55\u003c\/td\u003e\n\u003ctd\u003e3.0t Luxe Sensory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2024\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eZ\u003c\/td\u003e\n\u003ctd\u003ePerformance ProtoSpec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose GSC Power-Division?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven in drag racing and time attack with VR30DDTT builds worldwide\u003c\/li\u003e\n\u003cli\u003eCNC-machined in USA from premium aerospace-grade materials\u003c\/li\u003e\n\u003cli\u003eBacked by 1-year warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Do these fit the 2023 Nissan Z VR30DDTT?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes direct OEM replacement for all 2023-2024 Nissan Z models with VR30DDTT engine including Performance and ProtoSpec trims\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What makes the super alloy different from stock?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Super alloy offers superior heat fatigue resistance over OEM steel allowing safe operation at 30+ psi boost and 150+ whp gains\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Are valve seals or springs included?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Valves only seals springs retainers and locks sold separately recommend GSC spring kit for full valvetrain upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Special order ships within 3-5 business days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure foam-lined box 12 x 6 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":41146867023951,"sku":"GSC2245-12","price":389.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/4def426dc679a34b8d8dd3394d7be57e.jpg?v=1717522090","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-nissan-vr30ddtt-28-5mm-head-std-97-5mm-long-super-alloy-exhaust-valve-set-of-12","provider":"Black Ops Auto Works","version":"1.0","type":"link"}