{"product_id":"hol-300-137bk","title":"INTAKE MANIFOLD,LS1\/2\/6,SINGLE-PLANE,4150,BLACK","description":"\u003cp\u003e\u003cb\u003e\u003cu\u003eBRAND NEW HOLLEY SINGLE PLANE EFI INTAKE MANIFOLD, BLACK CERAMIC COATED, 4150 SQUARE BORE (HOLLEY PART #300-137BK).\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eNOTE: INCLUDES MOUNTING BOLTS \u0026amp; WASHERS, O-RING CYLINDER HEAD MOUNTING FLANGE GASKETS FOR AN OEM STYLE SEAL. DOES NOT WORK WITH FACTORY FUEL RAILS \u0026amp; REQUIRES HOLLEY FUEL RAIL KIT PART #534-219.\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eNOTE: EFI VERSIONS OF LS HI-RAM INTAKE MANIFOLD \u0026amp; FUEL RAIL ARE DESIGNED FOR 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. KIT AVAILABLE SEPARATELY FOR LS7 HI-RAM EFI TO ALLOW USE OF STOCK LS7 FUEL INJECTORS, PART #300-230.\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003e\u003cu\u003eAPPLICATIONS:\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003eGM LS GEN III OR IV ENGINES EQUIPPED WITH LS1\/LS2\/LS6 STYLE CATHEDRAL PORT CYLINDER HEADS \u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cb\u003e\u003cu\u003eFEATURES:\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003eBLACK CERAMIC COATING PROVIDES AN AGGRESSIVE LOOK TO YOUR ENGINE COMPARTMENT\u003c\/li\u003e \u003cli\u003e2500-7000 RPM POWER BAND\u003c\/li\u003e \u003cli\u003e4150 SQUARE BORE FLANGE\u003c\/li\u003e \u003cli\u003eOPTIMIZED RUNNER LAYOUT AND CONSTANT CROSS SECTIONAL AREA - BROAD TORQUE CURVE, BEST VEHICLE PERFORMANCE FROM 2500-7000 RPM\u003c\/li\u003e \u003cli\u003eMINIMUM CARB FLANGE HEIGHT - FIT IN VEHICLES WITH MINIMUM HOOD MODIFICATIONS\u003c\/li\u003e \u003cli\u003eCAST ALUMINUM CONSTRUCTION - GREAT MANIFOLD FOR CENTRIFUGAL BLOWER, TURBOCHARGED OR NOS POWER ADDER APPLICATIONS\u003c\/li\u003e \u003cli\u003eEFFICIENT CASTING DESIGN - LIGHTWEIGHT, CONSISTENT WALL THICKNESSES, IMPROVED CASTING QUALITY\u003c\/li\u003e \u003cli\u003eWEIGHT - 11.5 LBS.\u003c\/li\u003e \u003cli\u003eHEIGHT (FRONT) - 5.417\" TO THE LIFTER VALLEY COVER FLANGE AT THE ENGINE BLOCK FRONT FLANGE\u003c\/li\u003e \u003cli\u003ePORT SIZE - 2.50\" HEIGHT X 1.15\" WIDE\u003c\/li\u003e \u003cli\u003eINCLUDES O-RING INTAKE TO CYLINDER HEAD GASKETS\u003c\/li\u003e \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 \u003c\/ul\u003e \u003cp\u003e\u003cb\u003e\u003cu\u003eSPECS: \u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003e\n\u003cb\u003eBRAND: \u003c\/b\u003eHOLLEY EFI\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCOLOR: \u003c\/b\u003eBLACK\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCONSTRUCTION: \u003c\/b\u003eCAST\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eENGINE: \u003c\/b\u003eGM LS1\/LS2\/LS6\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFINISH: \u003c\/b\u003eBLACK\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFRONT HEIGHT: \u003c\/b\u003e5.417 INCH\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFUEL SYSTEM TYPE:\u003c\/b\u003e EFI\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMANIFOLD TYPE: \u003c\/b\u003eSINGLE PLANE\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePRODUCT TYPE: \u003c\/b\u003eINTAKE MANIFOLD\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eREAR HEIGHT: \u003c\/b\u003e5.417 INCH\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRECOMMENDED USE:\u003c\/b\u003e FORCED INDUCTION\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRPM POWER BAND:\u003c\/b\u003e 2500-7000 RPM\u003c\/li\u003e \u003c\/ul\u003e  \u003cbr\u003e  \u003cp\u003eYOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLET \u003ca target=\"_blank\" href=\"https:\/\/southwestspeed.com\/cdn\/shop\/files\/HOL_300-137BKInstructions.pdf\"\u003e\u003cspan style=\"COLOR: RED;\"\u003eHERE\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e","brand":"HOL 300-137BK","offers":[{"title":"Default Title","offer_id":47881921298713,"sku":"HOL 300-137BK","price":562.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/0477\/6985\/files\/HOL_300-137BK.jpg?v=1751938568","url":"https:\/\/southwestspeed.com\/products\/hol-300-137bk","provider":"Southwest Speed","version":"1.0","type":"link"}