{"product_id":"holley-efi-holley-single-plane-efi-intake-gm-ls1-ls2-ls6-300-137","title":"Holley EFI Holley Single Plane EFI Intake - GM LS1\/LS2\/LS6 - 300-137","description":"Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1\/LS2\/LS6 style cathedral port cylinder heads.\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications\u003c\/li\u003e\n\u003cli\u003eOptimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM\u003c\/li\u003e\n\u003cli\u003eWeight - 11.5 lbs.\u003c\/li\u003e\n\u003cli\u003eKit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P\/N 534-219\u003c\/li\u003e\n\u003cli\u003e4150 Square bore flange\u003c\/li\u003e\n\u003cli\u003e2500-7000 RPM power band\u003c\/li\u003e\n\u003cli\u003eEfficient casting design - lightweight, consistent wall thicknesses, improved casting quality\u003c\/li\u003e\n\u003cli\u003eMinimum carb flange height - fit in vehicles with minimum hood modifications\u003c\/li\u003e\n\u003cli\u003eHeight (front) - 5.417\" to the lifter valley cover flange at the engine block front flange\u003c\/li\u003e\n\u003cli\u003eIncludes Viton® O-ring intake to cylinder head gaskets - Viton® is a registered trademark of DuPont Performance Elastomers\u003c\/li\u003e\n\u003cli\u003ePort size - 2.50\" height x 1.15\" wide\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 Single Plane EFI LS Intake Manifold. All GM LS Gen III or IV engines equipped with LS1\/LS2\/LS6 style cathedral port cylinder heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Operating RPM Range:\u003c\/strong\u003e 2500-7000 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 1\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 Silver\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 5.417 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 No\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 Single 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 Natural\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 5.417 IN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Forced Induction\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 Single Plane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Bore Diameter:\u003c\/strong\u003e 3.6 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\u003eIncludes mounting bolts \u0026amp; washers. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P\/N 534-219.\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":49715189219566,"sku":"HLY-300-137","price":510.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/9110\/6798\/files\/ae60b32cf1af5b3f4f56f9e94b22d74376d069b8.jpg?v=1791566981","url":"https:\/\/elmosspeedshop.com\/products\/holley-efi-holley-single-plane-efi-intake-gm-ls1-ls2-ls6-300-137","provider":"Elmo's Speed Shop","version":"1.0","type":"link"}