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 manifold and rail kits will work with OE (Original Equipment) or aftermarket cylinder heads.

The 300-600 is the lower manifold in the 300-620 complete kit. Offering this separately allows you to select your components individually as you build your system.

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 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:
  • Base manifold and rail kit for Low-Ram 300-620 allows you to select your components individually as you build your intake system
  • Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
  • Low height to aid the use of a plenum mounted air-to-water intercooler in a top-feed configuration
  • Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application
  • High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)

    • More From This Category

    Holley Intake Manifold, EFI, Split Single Plane, 7.32 /7.32 in. Height, 2500-7000 RPM, GM LS3/L92, Satin, Each

    Holley Intake Manifold, EFI, Split Single Plane, 7.32 /7.32 in. Height, 2500-7000 RPM, GM LS3/L92, Satin, Each

    $1,063.94

    View
    Edelbrock SB2 Manifold for Non-restricted (open) Applications (NASCAR)

    Edelbrock SB2 Manifold for Non-restricted (open) Applications (NASCAR)

    $1,038.82

    View
    Dart Big Block Box Ram Manifold

    Dart Big Block Box Ram Manifold

    $2,210.32

    View
    Dart LS7 Manifold

    Dart LS7 Manifold

    $3,982.29

    View
    Edelbrock Intake Manifold, C-26 Dual Quad, Aluminium, Natural, Dual Square Bore, Non-EGR, For Chevrolet, Small Block

    Edelbrock Intake Manifold, C-26 Dual Quad, Aluminium, Natural, Dual Square Bore, Non-EGR, For Chevrolet, Small Block

    $799.97

    View