$198 Off

Holley 300-620BK Modular Lo-Ram EFI Manifold LS1/2/6, Top Feed

$198 Off

Holley 300-620BK Modular Lo-Ram EFI Manifold LS1/2/6, Top Feed
Holley

|

#425300620BK

Holley 300-620BK Modular Lo-Ram EFI Manifold LS1/2/6, Top Feed

$1,069.95

/kit

Factory Shipped

$1,267.95

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Product Summary

EFI Fuel System Type, Multi-port Injection Style, Black

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    Key Specs

    MFG. Part #300-620BK
    Injection StyleMulti-port
    Intake Manifold TypeLo-Ram
    RPM Range3,500-8,000
    Material TypeAluminum
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    Holley 300-620BK Details

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

    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)

    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

    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

    Charts

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
    CARB warning

    Holley 300-620BK Specifications

    KEY SPECS
    MFG. Part #300-620BK
    BrandHolley
    Injection StyleMulti-port
    Intake Manifold TypeLo-Ram
    RPM Range3,500-8,000
    Material TypeAluminum
    GENERAL
    Fuel System TypeEFI
    FinishPowder Coated
    ColorBlack
    EGRNo
    Cylinder Head ConfigurationCathedral Port
    Throttle Body Bore Size105mm
    Intake Section IncludedComplete
    Plenum MaterialAluminum
    Plenum FinishBlack
    Base FinishBlack Powder Coated
    Base MaterialAluminum
    Throttle Body IncludedNo
    Injectors IncludedNo
    Aftermarket Fuel Rail RequiredYes
    Fuel Rails IncludedYes
    Runners IncludedYes
    Runners RemovableNo
    Supplemental Bosses Cast-InNo
    Supplemental Bosses MachinedNo
    Emission Code3
    Sold in QuantityKit
    GTIN Code090127079607

    Questions & Answers

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    Fitment

    • GM LS6

    • GM LS2

    • GM LS1

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS2

    • GM LS1

    • GM LS1

    • GM LS2

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