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Holley Modular Lo-Ram EFI Manifold LS1/2/6

Lo-Ram Manifold Kit - LS1/2/6 Top-feed

PART# 300-620

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$755.95   Suggested Retail
$679.95   Holleydays Price
Estimated shipping date: 12/27/2019
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Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17" Total Height: Top-Feed Plenum Configuration w/105mm Long. Mount EFI Plenum Top - 9.07" (without an intercooler installed) Top-Feed Plenum Configuration w/105mm Long. Mount EFI Plenum Top, w/an intercooler installed - 9.07"+ the intercooler thickness

Overview

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.

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 top-feed 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)

Specs

BrandHolley EFI
ColorSilver
ConstructionCast
Emission Code3
EngineGM LS1/LS2/LS6
FinishSatin
Flange StyleEFI
Front Height9.07" without Intercooler
Fuel System TypeEFI
Manifold TypeLo-Ram
Product TypeManifold
WarrantyLimited 90 Day
Part Number300-620

Service Parts


Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17" Total Height: Top-Feed Plenum Configuration w/105mm Long. Mount EFI Plenum Top - 9.07" (without an intercooler installed) Top-Feed Plenum Configuration w/105mm Long. Mount EFI Plenum Top, w/an intercooler installed - 9.07"+ the intercooler thickness

Warranty Information

Limited 90 Day: See Details
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        Some parts are not legal for use in California or other states with similar regulations.

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