Holley EFI Holley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit 300-623
Specifications:
| Basic Operating RPM Range | 3500-8000 |
| Brand | Holley EFI |
| Burst Panel Compatible | Yes |
| Category | Air and Fuel Delivery |
| 17 | Silver |
| 158 | Cast |
| 8095 | No |
| Emission Code | 3 |
| Engine | GM LS1/LS2/LS6 |
| Flange Style | EFI |
| Front Maximum Height | 6.86" height with throttle body adapter |
| 906 | No |
| 10644 | Yes |
| Fuel System Type | EFI |
| 353 | Yes |
| 3390 | Performance |
| Injector Quantity | Single |
| Inlet Location | Front |
| 10651 | No |
| Manifold Type | Ultra Lo-Ram |
| 10 | Aluminum |
| 10648 | No |
| Plenum Finish | Natural |
| Product Type | Intake Manifold |
| Recommended Use | Forced Induction |
| 10645 | No |
| 6642 | Single Plane |
| Throttle Body Bore Diameter | 105 |
| 10626 | No |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Basic Operating RPM Range | 3500-8000 |
| Brand | Holley EFI |
| Burst Panel Compatible | Yes |
| Category | Air and Fuel Delivery |
| 17 | Silver |
| 158 | Cast |
| 8095 | No |
| Emission Code | 3 |
| Engine | GM LS1/LS2/LS6 |
| Flange Style | EFI |
| Front Maximum Height | 6.86" height with throttle body adapter |
| 906 | No |
| 10644 | Yes |
| Fuel System Type | EFI |
| 353 | Yes |
| 3390 | Performance |
| Injector Quantity | Single |
| Inlet Location | Front |
| 10651 | No |
| Manifold Type | Ultra Lo-Ram |
| 10 | Aluminum |
| 10648 | No |
| Plenum Finish | Natural |
| Product Type | Intake Manifold |
| Recommended Use | Forced Induction |
| 10645 | No |
| 6642 | Single Plane |
| Throttle Body Bore Diameter | 105 |
| 10626 | No |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Description_ABR | HOLLEY LORAM |
| Description_SHO | HOLLEY EFI LORAM KIT |
| Description_INV | LTS KIT, INT. MANIFOLD, LS1 LO-RAM, SAT |
| Description_DES | Holley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit |
| Description_EXT | Burst Panel Flange |
| Description_MKT | The Holley LS1/2/6 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 FastenersThe 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 in the front-feed configuration. The 300-623 Lo-Ram front-feed 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_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 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 | Modular design allowing the use of front-feed plenum entry |
| 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 in the front-feed configuration |
| 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 3/4-16 o-ring ports (8 AN) |
| Description_ABR | HOLLEY LORAM |
| Description_SHO | HOLLEY EFI LORAM KIT |
| Description_INV | LTS KIT, INT. MANIFOLD, LS1 LO-RAM, SAT |
| Description_DES | Holley EFI 300-623 LS1 Lo-Ram EFI Front-Feed Manifold Kit |
| Description_EXT | Burst Panel Flange |
| Description_MKT | The Holley LS1/2/6 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 FastenersThe 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 in the front-feed configuration. The 300-623 Lo-Ram front-feed 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_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 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 | Modular design allowing the use of front-feed plenum entry |
| 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 in the front-feed configuration |
| 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 3/4-16 o-ring ports (8 AN) |