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Holley EFI 300-227BK Hi-Ram Lower Manifold - LS1/LS2/LS6

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LS1/LS2/LS6 Cathedral Port EFI Base Only-Black

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Holley EFI 300-227BK Hi-Ram Lower Manifold - LS1/LS2/LS6

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$1,049.95
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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 â€" 2.49” Height x 1.21” Wide
  • Mounting Flange Gasket Type â€" Standard LS3 Molded O-Ring
  • Plenum Top Gasket Type â€" 3/32” Round O-ring Cord
  • Runner Length â€" 6.58”, As-Cast Runner Cross-Sectional Area â€" Tapered 4.25 in² to 2.53 in²
  • Black
Brand Holley EFI
Emission Code4
Product TypeIntake Manifolds
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127029930
Manufacturer Part Number300-227BK
Part Number300-227BK
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

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

These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are NOT a consideration.
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details

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      *Free Shipping & 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.

      Holley EFI 300-227BK Hi-Ram Lower Manifold - LS1/LS2/LS6
      Holley EFI 300-227BK Hi-Ram Lower Manifold - LS1/LS2/LS6
      $1,049.95