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Holley EFI Hi-Ram EFI Lower Manifold (GM LS7)

$809.95

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LS7 EFI Base Only

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.
  • 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 - 6.29", As-Cast Runner Cross-Sectional Area - Tapered 4.67 in² to 2.84 in²
These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are NOT a consideration.


Add to Cart:

  • Model: 300-229
  • FROM: Holley EFI

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we added this on Friday 11 September, 2015.

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