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. The 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 low height to aid the packaging of a plenum-mounted air-to-water intercooler in a top-entry configuration. The 300-620 plenum entry configuration is designed to allow the included Hi-Ram 105 mm plenum top to be fitted to a low-profile base intake manifold. The short runner, low-profile base intake manifold intended for forced induction applications was conceived to package with an air to water plenum mounted intercooler with a shorter overall height than possible with other existing intake manifolds. 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.
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
- Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application. With forced-induction and the short runner length the engine rpm at which peak power occurs is more likely to
- Modular design allowing the use of the included plenum entry
- Low height to aid the packaging of a plenum mounted air-to-water intercooler in a top-feed configuration or to fit under a stock or mildly modified hood in the front-feed configuration
- High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)
Brand |
Holley EFI |
Color |
Black |
Construction |
Cast |
Emission Code |
3 |
Engine |
GM LS1/LS2/LS6 |
Finish |
Black |
Flange Style |
EFI |
Front Height |
9.07" without Intercooler |
Fuel System Type |
EFI |
Injector Quantity |
Single |
Inlet Location |
Top |
Manifold Type |
Lo-Ram |
Product Type |
Intake Manifold |
Recommended Use |
Forced Induction |
RPM Power Band |
3500-8000 RPM |
Warranty |
Limited 90 Day |
UPC |
090127079607 |
Part Number |
300-620BK |
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