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Home / Shop / Holley LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6 - LS1/LS2/LS6 Cathedral Port EFI fits 1 x 105MM Throttle Body - Black Ceramic Coating

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Holley

Holley LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6 - LS1/LS2/LS6 Cathedral Port EFI fits 1 x 105MM Throttle Body - Black Ceramic Coating

Part # 300-123BK

$1,406.95

In Stock

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 & Benefits
Throttle Body Flange Location, with 102mm EFI Plenum Top : Height – 8.42” (from engine block lifter valley cover flange), Longitudinal Location – 3.84” (forward from engine block front flange), Angle – 25 deg. (down from vertical)

Fits: LS1/LS2/LS6 Cathedral Port EFI fits 1 x 105MM Throttle Body - Black Ceramic Coating

Installation note: *** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

In the box: Fuel Rail(s), Gasket Or Seal, Throttle Body Gasket

Specifications

Basic Operating RPM Range 3500-8000 RPM
CNC Ported No
Carburetor Flange N/A
Carburetor Quantity N/A
Color Black
Construction Cast
Cylinder Head Port Shape Cathedral
Deck Height 9.24 IN
EGR Port No
Engine GM LS1/LS2/LS6
Flange Style EFI
Front Maximum Height 12.32 IN
Fuel System Type EFI
Manifold Type Hi-Ram
Material Aluminum
Plenum Finish Black
Rear Maximum Height 11 IN
Recommended Use Forced Induction
Removable Runners No
Removable Top/Lid Yes
Single Or Dual Plane Type Single Plane
Throttle Body Bore Diameter 105 MM
Vacuum Ports Yes

Product Video