Holley Performance Announces LS7 HI-RAM Lower Manifolds

Holley’s Hi-Ram intakes have been al the rage for the last few years, but as always, those engineers in Kentucky keep figuring out new ways to make more power. Enter their brand new Hi-Ram Lower Intake Manifolds, designed specifically for LS7 headed engines.
Official Release:
Holley LS7 HI-RAM Lower Manifolds
The Holley GM LS7 Modular Hiā€“Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheetā€“metal for highā€“performance applications where induction system height is not limited. Coupling this Hiā€“Ram intake with the high flowing LS7 style cylinder heads has outstanding potential for N/A and forced induction applications at a budgetā€“minded cost.
Aggressive, bold, raceā€“bred styling will make bad intentions clear for drag race, muscle car, marine, offā€“road, sandrails, pulling trucks, track, streetā€“rod applications and more!
ā€¢ 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.
ā€¢ Runner length and the tapered crossā€“section designed to perform well for a wide range of engine configurations
ā€¢ EFI fuel rails are machined for ā€“8AN Oā€“ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hiā€“Ram kits.
ā€¢ Cast aluminum construction.
ā€¢ Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000ā€“8000+RPM.

Features:

  • 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 7000ā€“8000+RPM
  • Port Size ā€“ 2.49ā€ Height x 1.21ā€ Wide
  • Mounting Flange Gasket Type ā€“ Standard LS3 Molded O-Ring
  • Plenum Top Gasket Type ā€“ 3/32ā€ Round O-ring Cord
  • Runner Length ā€“ 6.29ā€, As-Cast Runner Cross-Sectional Area ā€“ Tapered 4.67 inĀ² to 2.84 inĀ²

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