Part Number:
HOL-300-600

Holley EFI 300-600 Lo-Ram Intake Manifold Base and Rail Chevy LS1/LS2/LS6 Silver Finish

Fits GM LS1/LS2/LS6, EFI, Forced Induction, 3500-8000 RPM Power Band, Silver

$665.95
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
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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.

  • 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)
    • Engine - GM LS1/LS2/LS6
    • Finish - Silver
    • Fuel System Type - EFI
    • Injector Quantity - Single
    • Inlet Location - Top
    • Manifold Type - Lo-Ram
    • Product Type - Intake Manifold Base
    • Recommended Use - Forced Induction
    • RPM Power Band - 3500-8000 RPM
More Information
CNC Part Number HOL-300-600
Price $665.95
Sold As Single
Manufacturer's Part Number 300-600
Brands Holley
Part Types Intake Manifold
Departments Parts
Vehicle Make Chevy LS
Intake Manifolds & Accessories Intake Manifolds
Manifold Base EFI
Manifold Series Lo-Ram
Intake Finish Polished
Manifold Type EFI
Custom Notices ⚠ PROP 65 WARNING
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