Product • Support • Tuning
Part # 300-621BK
$1,237.95
The Holley LS1/2/6 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Ultra Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications and the 105 mm throttle body part number 112-581 or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood.
Features & Benefits
With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used
Fits: Ultra Lo-Ram Manifold Kit - LS1/2/6-Black Finish
Installation note: Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17"_x000D_ Front Feed Plenum Configuration w/105mm Throttle Body Adapter - 6.86"
In the box: Fuel Rail(s), 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 | 6.86" height with throttle body adapter IN |
| Fuel System Type | EFI |
| Injector Quantity | Single |
| Inlet Location | Front |
| Manifold Type | Ultra Lo-Ram |
| Material | Aluminum |
| Plenum Finish | Black |
| 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 |
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