{"product_id":"holley-efi-billet-fuel-rail-kit-lsa-ls9-engines","title":"Holley EFI Billet Fuel Rail Kit – LSA \u0026 LS9 Engines","description":"\u003cp\u003eThe \u003cstrong\u003eHolley EFI Billet Fuel Rail Kit for LSA and LS9 Engines\u003c\/strong\u003e is a direct-replacement high-flow fuel rail upgrade for supercharged GM 6.2L applications using factory-style LSA or LS9 fuel rail mounting. Manufactured by \u003cstrong\u003eHolley EFI\u003c\/strong\u003e, these billet aluminum rails feature a large 21\/32\" internal fuel passage, -8AN ORB inlet ports, and additional -6 ORB ports for high-horsepower fuel systems, pressure sensors, gauges, or fuel pulse dampers.\u003c\/p\u003e\n\u003cp\u003eThe included brackets are designed for factory-height 33.60mm injectors, making this kit a clean upgrade for CTS-V, Camaro ZL1, Corvette ZR1, and compatible supercharger systems designed around OEM-style rails. The black anodized finish and laser-etched EFI logo provide a finished appearance, while an optional Holley 534-211 adapter kit allows builders to retain the factory fuel line quick-connect.\u003c\/p\u003e\n\u003ch4\u003eIncludes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Holley EFI Billet Fuel Rails\u003c\/li\u003e\n\u003cli\u003eFuel Rail Mounting Brackets for 33.60mm Factory-Height Injectors\u003c\/li\u003e\n\u003cli\u003e(8) -6 ORB Port Plugs\u003c\/li\u003e\n\u003cli\u003eRequired Mounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Fuel injectors, -8AN fittings, -6 ORB fittings, fuel pressure regulator, and factory quick-connect adapter are sold separately.\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n      \u003c\/svg\u003e \u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable class=\"custom-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eHolley EFI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e534-285\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFuel Rail Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Family\u003c\/td\u003e\n\u003ctd\u003eGM LSA \/ LS9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Displacement\u003c\/td\u003e\n\u003ctd\u003e6.2L \/ 376 CID V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Injection Type\u003c\/td\u003e\n\u003ctd\u003ePort Injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel System Type\u003c\/td\u003e\n\u003ctd\u003eEFI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBright-Dip Black Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Fuel Passage\u003c\/td\u003e\n\u003ctd\u003e21\/32\" (0.656\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInjector Feed Passage\u003c\/td\u003e\n\u003ctd\u003e1\/4\" (0.250\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Rail Ports\u003c\/td\u003e\n\u003ctd\u003e-8 ORB \/ 3\/4\"-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Ports\u003c\/td\u003e\n\u003ctd\u003e(4) -6 ORB \/ 9\/16\"-18 per rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Port Plugs\u003c\/td\u003e\n\u003ctd\u003e(8) -6 ORB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInjector Height\u003c\/td\u003e\n\u003ctd\u003e33.60mm Factory Height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Fuel Line Compatible\u003c\/td\u003e\n\u003ctd\u003eYes, with Holley P\/N 534-211 Adapter Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Injectors Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGaskets \/ Seals Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e090127843727\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmission Code\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n      \u003c\/svg\u003e \u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp\u003eDesigned for compatible \u003cstrong\u003eGM LSA and LS9 6.2L supercharged engine applications\u003c\/strong\u003e. The supplied Holley fitment information includes Cadillac and Chevrolet applications such as CTS-V, Camaro ZL1, and Corvette ZR1.\u003c\/p\u003e\n\u003ctable class=\"custom-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel \/ Submodel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS-V\u003c\/td\u003e\n\u003ctd\u003e6.2L \/ 376 CID V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro ZL1\u003c\/td\u003e\n\u003ctd\u003e6.2L \/ 376 CID V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette ZR1\u003c\/td\u003e\n\u003ctd\u003e6.2L \/ 376 CID V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect replacement for factory LSA \/ LS9 supercharger fuel rails and compatible superchargers designed to use OEM-style rails.\u003c\/li\u003e\n\u003cli\u003eIncluded brackets are designed for \u003cstrong\u003e33.60mm factory-height fuel injectors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eVerify supercharger, injector height, and fuel system configuration before ordering.\u003c\/li\u003e\n\u003cli\u003eFactory fuel line quick-connect compatibility requires \u003cstrong\u003eHolley P\/N 534-211\u003c\/strong\u003e, sold separately.\u003c\/li\u003e\n\u003cli\u003eA 3\/8\" quick-connect release tool is required when disconnecting the factory fuel line.\u003c\/li\u003e\n\u003cli\u003eFuel pressure must be relieved before fuel system disassembly. Follow the vehicle service procedure before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eTech Insight\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e \u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n        \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n      \u003c\/svg\u003e \u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ch3\u003e1. Why upgrade the factory LSA or LS9 fuel rails?\u003c\/h3\u003e\n\u003cp\u003eThe larger \u003cstrong\u003e21\/32\" main fuel passage\u003c\/strong\u003e increases available fuel volume and gives builders more flexibility when supporting higher-horsepower supercharged combinations, larger injectors, upgraded fuel pumps, or alternative fuels.\u003c\/p\u003e\n\u003ch3\u003e2. What can the additional -6 ORB ports be used for?\u003c\/h3\u003e\n\u003cp\u003eThe center ports can be used for fuel pressure gauges, sensors, fuel pulse dampers, or custom fuel system plumbing. A -6 ORB to 1\/8\" NPT adapter can be used when installing many common pressure sensors or gauges.\u003c\/p\u003e\n\u003ch3\u003e3. Can I keep the factory fuel line?\u003c\/h3\u003e\n\u003cp\u003eYes. Holley offers P\/N \u003cstrong\u003e534-211\u003c\/strong\u003e to adapt the rails to the factory fuel line quick-connect, allowing builders to upgrade the rails without completely redesigning the fuel supply connection.\u003c\/p\u003e\n\u003ch3\u003e4. Will these rails work with factory-height injectors?\u003c\/h3\u003e\n\u003cp\u003eYes. The supplied mounting brackets are specifically designed around \u003cstrong\u003e33.60mm factory-height injectors\u003c\/strong\u003e. Different injector heights may require alternate brackets or changes to the installation.\u003c\/p\u003e\n\u003ch3\u003e5. Are these rails only for factory superchargers?\u003c\/h3\u003e\n\u003cp\u003eNo. They are a direct replacement for the OEM rails on factory LSA and LS9 blowers, but they can also fit aftermarket superchargers designed around the same OEM fuel rail mounting configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Holley","offers":[{"title":"Default Title","offer_id":56872688353446,"sku":"534-285","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/534-285-Holley-EFI-Billet-Fuel-Rail-LSA-LS9-1.jpg?v=1785179609","url":"https:\/\/wideopendesign.com\/products\/holley-efi-billet-fuel-rail-kit-lsa-ls9-engines","provider":"Wide Open Design","version":"1.0","type":"link"}