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Single Plane 4500 Carbureted Split-Design Race Intake Manifold - GM LS1/LS2/LS6

Fits GM LS1/LS2/LS6 - Carbureted with Cast Finish

Part # 300-295

Single Plane 4500 Carbureted Split-Design Race Intake Manifold - GM LS1/LS2/LS6

Estimated Ship Date: 04/25/2025
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$663.95
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Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

See Emissions Details
The new Holley Single-Plane Race intake manifold is designed with maximum performance in mind. Featured is a two-piece split design that provides access for all levels of porting and modification. With shoulder bolt locators and O-ring seal, disassembly & reassembly is simple and precise. The manifold with AN-8 fuel rails fits GM LS Gen III engines with cathedral port heads and has a 4500 Dominator style carb flange for carburetors, EFI throttle bodies, or EFI throttle body elbows, and is configured with a LS MAP sensor port along with other NPT plenum vacuum or air-temp sensor ports. The LS Race single-plane intake manifold is designed for hi-performance/racing engine applications, 5.3 to 6.2+ liter displacements, N/A or with power adders. The large volume 4500 plenum and optimized runners provide airflow potential for Hi-RPM engines with max power at 7500-8000+ RPM.

Features:

  • Maximum performance 4500 Dominator flange race design with hood clearance consideration
  • Lighter than other split race intakes
  • Split feature making porting efforts easy!
  • 33 to 50% the price of other split race intakes
  • Captured O-ring seals at head ports and plenum split
  • Vacuum Port options include (2) 1/8, (1) 1/4, and (1) 3/8, NPT ports at the carb flange
  • Two versions available: EFI type - Billet Fuel Rails and rail mounting hardware included, or Carbureted / Sniper EFI 4500 TBI style

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

Barrels4
Basic Operating RPM Range2500-7500 R3
Brand Holley
Carburetor FlangeDominator/4500
Carburetor Studs IncludedNo
CategoryEngine
ColorNatural
ConstructionCast
EGR PortNo
Emission Code3
EngineGM LS1/LS2/LS6
FinishSatin
Flange Style4500
Front Height7.32"
Front Maximum Height7.32 IN
Fuel Injectors IncludedNo
Fuel Rail(s) IncludedNo
Fuel System TypeCarbureted
Gasket Or Seal IncludedNo
Grade TypePerformance
Intake Port Gasket(s) IncludedNo
Manifold TypeSplit Single Plane
MaterialAluminum
Nitrous Bung(s) IncludedNo
Part TypeEngine Intake Manifold
Plenum FinishNatural
Product TypeIntake Manifold
Rear Height7.32"
Rear Maximum Height7.32 IN
Removable RunnersNo
RPM Power Band2500-7000
Single Or Dual Plane TypeSingle Plane
Sub CategoryCylinder Block Components
Throttle Body IncludedNo
WarrantyManufacturer's Limited 90 Day Warranty
UPC090127082249
Part Number300-295
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This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle


The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Includes mounting bolts & 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. NOTE: 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.
Manufacturer's Limited 90 Day Warranty: See Details

*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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