LS1/LS2/LS6 Holley Modular Lo-Ram EFI Intake Manifold – Top Feed w/Black Finish


Model Number: 300-620BK

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-feed configuration.
The 300-620 top-feed 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.


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 be coupled to the supercharger or turbocharger being used

Modular design allowing the use of front-feed plenum entry

Intake design facilitates custom inlet duct and throttle body placement

Low height to fit under a stock or mildly modified hood in the front-feed configuration

Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations

Clears 4th Gen Camaro and C5 Corvette cowls and hoods without modification

High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)


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SKU: 300-620BK Category: