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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 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.
set for short (such as Pico, or LS7) fuel injectors.
The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a
Holley EFI Holley Modular Lo-Ram EFI Manifold LS1/2/6 - 300-620BK
$1,069.95
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
- 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
- Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
- Modular design allowing the use of the included plenum entry
- High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)
Product Specifications:
- Product Details: Lo-Ram Manifold Kit - LS1/2/6-Black Finish
- Basic Operating RPM Range: 3500-8000 RPM
- Carburetor Flange: N/A
- Carburetor Quantity: N/A
- Carburetor Studs Included: N/A
- CNC Ported: No
- Color: Black
- Construction: Cast
- Cylinder Head Port Shape: Cathedral
- Deck Height: 9.24 IN
- EGR Port: No
- Engine: GM LS1/LS2/LS6
- Flange Style: EFI
- Front Maximum Height: 9.07" without Intercooler IN
- Fuel Injectors Included: No
- Fuel Rail(s) Included: Yes
- Fuel System Type: EFI
- Gasket Or Seal Included: Yes
- Grade Type: Performance
- Injector Quantity: Single
- Inlet Location: Top
- Intake Port Gasket(s) Included: No
- Manifold Type: Lo-Ram
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Plenum Finish: Black
- Product Type: Intake Manifold
- Recommended Use: Forced Induction
- Removable Runners: No
- Removable Top/Lid: Yes
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: 105 MM
- Throttle Body Gasket Included: Yes
- Throttle Body Included: No
- Vacuum Ports: Yes
Installation Notes:
Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17" Total Height: Plenum Configuration w/105mm Long. Mount EFI Plenum Top - 9.07" (without an intercooler installed) Plenum Configuration w/105mm Long. Mount EFI Plenum Top, w/an intercooler installed - 9.07"+ the intercooler thickness