Part # 300-123BK
$1,406.95
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
| 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 |
The EFI Brain
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