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Holley 300-228 Hi-Ram Lower Manifold - LS7

Part # 300-228 Be the first to write a review

LS7 Carbureted Base Only

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Holley 300-228 Hi-Ram Lower Manifold - LS7

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$849.95
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The Holley GM LS7 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 LS7 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€" 6.29”, As-Cast Runner Cross-Sectional Area â€" Tapered 4.67 in² to 2.84 in²
Brand Holley
Emission Code4
Product TypeIntake Manifolds
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127681732
Manufacturer Part Number300-228
Part Number300-228
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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      Holley 300-228 Hi-Ram Lower Manifold -  LS7
      Holley 300-228 Hi-Ram Lower Manifold - LS7
      $849.95