Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base
Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base

300-227BK

Holley® GM LS1/LS2/LS6 EFI Hi-Ram Lower Intake Manifold Base

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    Compatible: (5.7L/6.0L)

    2004 - 2007 Cadillac CTS-V

    1998 - 2002 Chevy Camaro 

    1997 - 2007 Chevy Corvette 

    2005 - 2006 Chevy SSR 

    2006 - 2009 Chevy Trailblazer 

    1998 - 2002 Pontiac Firebird 

    2004 - 2006 Pontiac GTO

    2008 - 2010 Saab 9-7X

     

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

     

     

    The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more! • The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems. • Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations • EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits. • Cast aluminum construction. • Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.

    Features:

    • Port Size – 2.49” Height x 1.21” Wide
    • Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
    • Plenum Top Gasket Type – 3/32” Round O-ring Cord
    • Runner Length – 6.58”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.53 in²
    • Black

     

    Brand Holley EFI
    Color Black
    Construction Cast
    Emission Code 3
    Engine GM Small Block Gen III/IV (LS Based)
    Fuel System Type EFI
    Product Type Intake Manifold Base
    Type of Component Lower Manifold
    Warranty Limited 90 Day
    UPC 090127029930
    Part Number 300-227BK



    Install Guide:

     

     

    Warranty: