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300-129BK Dual Plane Mid-Rise Intake Manifold GM LS3/L92 Rectangle Port
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-300-129BK

300-129BK Dual Plane Mid-Rise Intake Manifold GM LS3/L92 Rectangle Port

$58495
4 left in stock
ShippingShips on Sep 14, 2026
Lowest PriceLowest Price Guarantee

Carbureted Intake Manifolds
  • GM LS3 / L92 Rectangle Port
      • Dual Plane Mid-Rise Intake Manifold
    • GM LS3/L92 Rectangle Port
    • Square Bore Carb Flange
    • 1500-6500 RPM
    • Black Finish

      Specifications
    • RPM Range: 1,500-6,500
    • Weight: 14.56 lbs
    • Front Height: 5.07" from front lifter valley cover to carb mounting flange
    • Rear Height: 6.14" from rear lifter valley cover to carb mounting flange
    • Port Size: 1.09" W x 2.454" H
    • Carb Flange Angle: 0°
    • Carb Flange: Standard Holley 4150, accepts up to 1.75" diameter throttle bores
    • Vacuum Port Thread: 3/8" NPT
    • MAP Sensor Port Thread: 1/8" NPT

      Parts Supplied with Each Intake:
    • Zinc-plated hex head cap mounting bolts and washers
    • 3/8" NPT hex socket pipe plug (to block the manifold vacuum port if necessary)
    • 1/8" NPT hex socket pipe plug (to block the MAP sensor port if necessary)
    • (8) Viton® O-ring cylinder head mounting flange gaskets

      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 Height8.3
    Package Width15.0
    Package Length23.1
    Weight17.755 PG
    Part CategoryPerformance Parts
    UsageStreet/Hi-Performance
    Number Of CarbsOne
    PositionUpper
    EmissionWithout EGR
    Rpm Range1500-6500
    Cylinder Head TypeLS3/L92
    Part FitmentSemi Universal
    Engine Make/SizeGM LS
    Vendor Part Number300-129BK
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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    Some parts are not legal for use in California or other states with similar laws / regulations
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