{"product_id":"holley-efi-holley-ls-efi-manifold-2x4-dual-plane-black-gm-ls1-ls2-ls6-300-121bk","title":"Holley EFI Holley LS EFI Manifold - 2x4 Dual Plane - Black GM LS1\/LS2\/LS6 - 300-121BK","description":"Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1\/LS2\/LS6 engines\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.\u003c\/li\u003e\n\u003cli\u003eAppropriate for any street\/performance, muscle car, or street rod enthusiast\u003c\/li\u003e\n\u003cli\u003eIntended for use on all GM LS Gen III engines equipped with LS1\/LS2 style cathedral port cylinder heads\u003c\/li\u003e\n\u003cli\u003ePower band from 1500-7000 rpm\u003c\/li\u003e\n\u003cli\u003eCarbureted and EFI versions available\u003c\/li\u003e\n\u003cli\u003eCast aluminum construction\u003c\/li\u003e\n\u003cli\u003eThe Holley GM LS1\/LS2\/LS6 2x4V dual-plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am and at Lemans in the 1960’s.\u003c\/li\u003e\n\u003cli\u003eCarb Flange Center-To-Center: 8-5\/8”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details:\u003c\/strong\u003e Holley EFI 2x4 Dual Plane Intake Manifold, LS Gen 3 LS1\/LS2\/LS6 engines, w\/Black Ceramic Coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Operating RPM Range:\u003c\/strong\u003e 1500-6500 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Flange:\u003c\/strong\u003e Square\/4150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Quantity:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Studs Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Ported:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Cast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Port Shape:\u003c\/strong\u003e Cathedral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeck Height:\u003c\/strong\u003e 9.24 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGR Port:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e GM LS1\/LS2\/LS6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Style:\u003c\/strong\u003e 4150 Square Bore\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Maximum Height:\u003c\/strong\u003e 4.47 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Rail(s) Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel System Type:\u003c\/strong\u003e EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Or Seal Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Port Gasket(s) Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManifold Type:\u003c\/strong\u003e Dual Plane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrous Bung(s) Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Engine Intake Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlenum Finish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Intake Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Maximum Height:\u003c\/strong\u003e 5.54 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable Runners:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable Top\/Lid:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Or Dual Plane Type:\u003c\/strong\u003e Dual Plane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Bore Diameter:\u003c\/strong\u003e 1.75 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Gasket Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Ports:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes:\u003c\/h3\u003e\n\u003cp\u003eAll GM LS Gen 3 engines equipped with LS1\/LS2 style cathedral port cylinder heads.\r\n\r\nNOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P\/N 300-230 (see below in the service parts section).\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":49715187417326,"sku":"HLY-300-121BK","price":849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/5424bdcff1c61fb900271b2b4db0fca50bf7912f.jpg?v=1791571985","url":"https:\/\/elmosspeedshop.com\/products\/holley-efi-holley-ls-efi-manifold-2x4-dual-plane-black-gm-ls1-ls2-ls6-300-121bk","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}