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 manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads. The 300-603(satin) & 300-603BK(black) front-feed, base-lower intake manifold provides two injectors per cylinder for hi-volume fuel demands, flexible fuel supply strategies, and dual-fuel capability. Offering this base intake manifold with fuels rails separately allows you to select your components individually as you build your induction system. Complete front-feed manifold kits are also available with dual fuel injectors, see P/Ns 300-625 & 300-625BK. The front-feed, short runner, low-profile base intake manifold was conceived to package with high-boost turbocharged or supercharged induction systems with a short overall height not possible with other existing intake manifolds. The Holley Lo-Ram complete intake manifold kits and throttle body adapters available as a machined casting 300-606 & 300-606BK are configured for a 105mm throttle body, see Holley P/N 112-581 or similar models. 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. Holley Lo-Ram intake manifold kits include all the sealing O-rings, plugs, and fasteners required for the installation of the kit.
Specifications:
| Description_DEF |
Engine Intake Manifold |
| Description_DES |
DUAL FUEL INJECTOR LS1 ULTRA LO-RAM MANIFOLD BASE GM LS1/LS2/LS6 |
| Description_EXT |
Holley EFI Lo-Ram Intake Manifold; Lower; w/Fuel Rails; Satin Black Finish; For Use w/GM LS Gen III And IV Engine w/GM LS1/2/6 w/Cathedral Port Cylinder Heads; |
| 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 manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads. The 300-603(satin) & 300-603BK(black) front-feed, base-lower intake manifold provides two injectors per cylinder for hi-volume fuel demands, flexible fuel supply strategies, and dual-fuel capability. Offering this base intake manifold with fuels rails separately allows you to select your components individually as you build your induction system. Complete front-feed manifold kits are also available with dual fuel injectors, see P/Ns 300-625 & 300-625BK. The front-feed, short runner, low-profile base intake manifold was conceived to package with high-boost turbocharged or supercharged induction systems with a short overall height not possible with other existing intake manifolds. The Holley Lo-Ram complete intake manifold kits and throttle body adapters available as a machined casting 300-606 & 300-606BK are configured for a 105mm throttle body, see Holley P/N 112-581 or similar models. 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. Holley Lo-Ram intake manifold kits include all the sealing O-rings, plugs, and fasteners required for the installation of the kit. |
| Description_INV |
BASE IM & FUEL RAILS, LS1 LO-RAM, B |
| Description_FAB |
Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads |
| Description_FAB |
Provides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm, depending on the application |
| Description_FAB |
Dual-injector, separate-passage, high-volume fuel rails with mounting hardware, dual-fuel capable, 8 AN o-ring ports |
| Description_FAB |
Modular LS1 Lo-Ram design allows customization for user desired configurations |
| Description_FAB |
Low height & compact packaging allows installation in most applications often under stock hoods |
| Description_FAB |
Available with both as-cast satin and black power-coat finishes |
| Description_SHO |
Intake Manifold |
| Color |
Black |
| Product Type |
Intake Manifold Base |
| Fuel System Type |
EFI |
| Discount Percentage |
5-25% |
| Engine Make/Size |
Gen. III LS1/LS2/LS6 |
| RPM Range |
7000-8000 |
| WARNING CA Proposition 65 |
No |
| Manifold Type |
Ultra Lo-Ram |
| Recommended Use |
Forced Induction |
| Warranty |
Limited 90 Day |
| Number of Carbs |
None; For Fuel Injection |
| Construction |
Cast |
| Engine |
GM LS1/LS2/LS6 |
| Injector Quantity |
Dual |
| RPM Power Band |
3500-8000 RPM |
| Cylinder Head Type |
LS1/LS2/LS6 |
| Position |
Lower |
| Usage |
Racing |
| Brand |
Holley EFI |
| Emission Code |
3 |
| Finish |
Black |
| Inlet Location |
Front |
| Clearance Category |
Air and Fuel Delivery |
| Sale Category |
Air and Fuel Delivery |
| Length |
8.0000 |
| Width |
15.0000 |
| Height |
20.0000 |
| Weight |
19.0000 |
