Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226

$849.95
Skip to product information
Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226

Holley Hi-Ram Lower Manifold - GM LS1/LS2/LS6 - 300-226

$849.95
• Cast aluminum construction. • 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. • 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. • 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. 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!

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

Product Specifications:

  • Product Details: LS1/LS2/LS6 Cathedral Port Carbureted Base Only (Plenum-Top-Mounting Fabrication Flange Available)
  • Basic Operating RPM Range: 3500-8000 RPM
  • Carburetor Flange: N/A
  • Carburetor Quantity: N/A
  • Carburetor Studs Included: No
  • CNC Ported: No
  • Color: Natural
  • Construction: Cast
  • Cylinder Head Port Shape: Cathedral
  • Deck Height: 9.24 IN
  • EGR Port: No
  • Engine: GM LS1/LS2/LS6
  • Flange Style: N/A
  • Fuel Injectors Included: No
  • Fuel Rail(s) Included: No
  • Fuel System Type: Carb
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Intake Port Gasket(s) Included: No
  • Material: Aluminum
  • Nitrous Bung(s) Included: No
  • Part Type: Engine Intake Manifold
  • Plenum Finish: Natural
  • Product Type: Intake Manifold Base
  • Removable Runners: No
  • Removable Top/Lid: Yes
  • Single Or Dual Plane Type: Single Plane
  • Throttle Body Bore Diameter: N/A
  • Throttle Body Gasket Included: No
  • Throttle Body Included: No
  • Type of Component: Lower Manifold
  • Vacuum Ports: Yes

Installation Notes:

These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are NOT a consideration.

You may also like