300-291BK Split-Design Race Intake Manifold
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-300-291BK

300-291BK Split-Design Race Intake Manifold

$77995
ShippingShips on 09/08/2026
Lowest PriceLowest Price Guarantee

GM LS
Rectangle Port
Split-Design Race Intake Manifold
  • GM LS with LS3/L92 Rectangle Port Heads
  • Carbureted Applications
  • Single Plane
  • 4150 Square Bore Flange
  • 2500-7000 RPM
  • Cast Aluminum
  • Black Finish

    Engineered with racing and high-performance engines in mind, the featured Split Design allows simple disassembly for easy access to the internal plenum and ports for easier custom port work.

    Features

    • Designed for maximum performance with a profile for hood clearance
    • Economical and lighter than the competitors split design intakes
    • Split Design provides easy porting
    • Captured O-ring seals provide a leak-free seal with the cylinder heads and the intake split
    • Includes Intake Mounting Bolts with Washers, (8) O-ring Seals

    Dimensions

    • Fits a 4150 square-bore carburetor with up to 1 3/4 in. diameter throttle blades
    • Carburetor Flange Height: 7.250 in. with a 0-degree angle
    • Runner Cross-Sectional Area: As-Cast 4.500 in. square at runner entry tapered to 3.200 in. square at flange exit
    • Vacuum Ports: (2) 1/8 in. NPT, (1) 1/4 in. NPT, and (1) 3/8 in. NPT at throttle body flange
    • Port Size: 2.590 in. Height x 1.280 in. Wide
    • Port Flange O-Rings: 0.139 in. Round, Size 2-232, FKM 
    • Split Flange O-Ring: 0.139 in. Round, 18.500 in. length, FKM 

    Parts Breakdown

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeIntake Manifold
    BrandHOLLEY
    Package Height10.0
    Package Width14.5
    Package Length22.8
    Weight22.75 PG
    Part CategoryPerformance Parts
    Aftermarket Fuel Rail RequiredYes
    Hardware IncludedYes
    Fuel Rail MaterialBillet aluminum
    Intake MaterialCast Aluminum
    Throttle Body IncludedNo
    Intake StyleSingle plane
    Gasket Or Seal IncludedYes
    QuantitySold individually
    Cylinder Head TypeRectangular Port
    Intake FinishBlack
    Injectors IncludedNo
    Carburetor QuantityOne
    Fuel Rails IncludedNo
    Engine Make/SizeGM LS
    Supplemental Bosses MachinedYes
    Fuel Rail FinishBlack anodized
    Rpm Range2500-7000
    Map Sensor IncludedNo
    Intake Manifold Height7.2 in (182.88 mm)
    Vendor Part Number300-291BK
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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