{"product_id":"manley-chevy-ls-7-small-block-severe-duty-pro-flo-exhaust-valves-set-of-8","title":"Manley Chevy LS-7 Small Block Severe Duty\/Pro Flo Exhaust Valves (Set of 8)","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e11679-8\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 807298062808\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eManley Chevy LS1 LS2 LS6 LS7 Small Block Severe Duty Exhaust Valves (Set of 8)\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eManley Severe Duty exhaust valves deliver racing-level performance for Chevrolet Small Block LS engines in models like Corvette Camaro and GTO from 1997 to 2013. This set of 8 valves sized 1.600 inch diameter by 5.000 inch length fits LS1 LS2 LS6 and LS7 cylinder heads directly. Built from XH-428 stainless steel they handle extreme heat and RPM in competition builds.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eXH-428 Material:\u003c\/strong\u003e High-nickel stainless steel formulation resists exhaust gas corrosion and maintains strength at high temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Dimensions:\u003c\/strong\u003e 1.600 inch head diameter 5.000 inch length .341 inch stem 11\/32 inch tip for precise LS head fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro Flo Design:\u003c\/strong\u003e +30 degree Supertech seat face swirl polished back-cut and knife edge promote high-flow exhaust scavenging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUndercut Keepers:\u003c\/strong\u003e Reduced keeper groove weight lowers valve train inertia for higher rev limits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Forged:\u003c\/strong\u003e Fully machined construction ensures straightness and durability under severe duty conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSet contains exactly 8 exhaust valves for complete V8 replacement\u003c\/li\u003e\n\u003cli\u003ePair with Manley NK-844 intake valves for matched valvetrain setup\u003c\/li\u003e\n\u003cli\u003eInspect cylinder head seats prior to installation for optimal sealing\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\u003eCheck valve spring pressures and retainer compatibility before assembly\u003c\/li\u003e\n\u003cli\u003eCompatible with stock or aftermarket LS heads no special hardware needed\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\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eBase LS1 V8-5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2002\u003c\/td\u003e\n\u003ctd\u003ePontiac\u003c\/td\u003e\n\u003ctd\u003eFirebird\u003c\/td\u003e\n\u003ctd\u003eBase LS1 V8-5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eBase Z06 LS1 LS6 V8-5.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2007\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eBase LS2 V8-6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eZ06 LS7 V8-7.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003ePontiac\u003c\/td\u003e\n\u003ctd\u003eGTO\u003c\/td\u003e\n\u003ctd\u003eBase LS1 LS2 V8-5.7L 6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2007\u003c\/td\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS\u003c\/td\u003e\n\u003ctd\u003eV LS6 LS2 V8-5.7L 6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2009\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eTrailblazer SS\u003c\/td\u003e\n\u003ctd\u003eLS2 V8-6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Manley?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven in NHRA IHRA and drag racing valvetrain applications\u003c\/li\u003e\n\u003cli\u003eManufactured with tight tolerances for reliable high-RPM operation\u003c\/li\u003e\n\u003cli\u003eEngineered and forged in the USA for consistent quality\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 Which Chevy LS engines do these valves fit?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Direct fit for Gen III and Gen IV Small Block LS1 LS2 LS6 LS7 cylinder heads in Corvette Camaro GTO and similar models 1997-2013\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What makes XH-428 material suitable for exhaust valves?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Proprietary stainless with elevated nickel and chromium content provides heat resistance up to 1600 degrees F and fatigue strength for endurance racing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty coverage applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Manley provides a limited one-year warranty against manufacturing defects when installed by certified professionals\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure foam-lined box protects valves during transit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.65 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":41283597762639,"sku":"MAN11679-8","price":301.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/products\/manley-chevy-ls-7-small-block-severe-dutypro-flo-exhaust-valves-set-of-8-manley-performance.jpg?v=1772548738","url":"https:\/\/www.blackopsautoworks.com\/products\/manley-chevy-ls-7-small-block-severe-duty-pro-flo-exhaust-valves-set-of-8","provider":"Black Ops Auto Works","version":"1.0","type":"link"}