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. Plenum top is machined for a standard "large" 6-1/8 in. x 3-1/8 in. burst panel. SFI approved burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners 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. The 300-623 Ultra Lo-Ram plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.
Specifications:
Description_DEF |
Engine Intake Manifold |
Description_DES |
Ultra Lo-Ram EFI Manifold Kit GM LS1/LS2/LS6 |
Description_EXT |
Holley EFI Lo-Ram Intake Manifold; Upper; Fits GM Engines w/LS1/2/6 Cathedral Ports Cylinder Heads; Front-Feed; w/Plenum Burst Plate Flange; Satin Finish; |
Description_FAB |
Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads |
Description_FAB |
Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application. Includes a burst panel flange in the lid |
Description_FAB |
Plenum top is machined for a standard ΓÇ£large" 6-1/8" x 3-1/8" burst panel. Burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners |
Description_FAB |
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 |
Description_FAB |
Intake design facilitates custom inlet duct and throttle body placement |
Description_FAB |
Low height to fit under a stock or mildly modified hood. |
Description_FAB |
Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations |
Description_FAB |
High volume fuel rails and mounting hardware included with ┬╛"-16 o-ring ports (8 AN) |
Description_FAB |
Available in satin or black finish |
Description_INV |
KIT, INT. MANIFOLD, LS1 LO-RAM, SATIN |
Description_MKT |
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. Plenum top is machined for a standard "large" 6-1/8 in. x 3-1/8 in. burst panel. SFI approved burst panels, burst panel frame sets, and gaskets may be purchased from various manufacturers such as Allstar Performance or Specialty Fasteners 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. The 300-623 Ultra Lo-Ram plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors. |
Description_SHO |
Intake Manifold |
Emission Code |
3 |
Engine |
GM LS1/LS2/LS6 |
Front Height |
6.86" height with throttle body adapter |
Usage |
Racing |
Position |
Upper |
WARNING CA Proposition 65 |
No |
Cylinder Head Type |
LS1/LS2/LS6 |
Brand |
Holley EFI |
Burst Panel Compatible |
Yes |
Inlet Location |
Front |
Number of Carbs |
None; For Fuel Injection |
Engine Make/Size |
Gen. III LS1/LS2/LS6 |
RPM Range |
7000-8000 |
Construction |
Cast |
Finish |
Silver |
Flange Style |
EFI |
Fuel System Type |
EFI |
Injector Quantity |
Single |
Manifold Type |
Ultra Lo-Ram |
Product Type |
Intake Manifold |
Recommended Use |
Forced Induction |
Warranty |
Limited 90 Day |
Length |
15.4000 |
Width |
15.4000 |
Height |
20.5000 |
Weight |
26.7400 |