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12_0c56f2a2-b6d2-45bf-ad68-5cdff76d9a59 - Northline Parts

Single-Plane EFI Intake Manifold w/ Fuel Rails 300-137 For GM Gen LS1 LS2 LS6

Alligator_819_x_200_px - Northline Parts

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$430.59
Sale price  $430.59 Regular price 

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Single-Plane EFI Intake Manifold w/ Fuel Rails 300-137 For GM Gen LS1 LS2 LS6

Unlock the full performance potential of your engine with this premium aftermarket single-plane EFI intake manifold. Specifically engineered for GM Gen III and IV LS-based engines including the LS1, LS2, and LS6, this manifold is designed to optimize airflow for high-RPM power. Please note that this is a high-quality aftermarket component and is not an original equipment manufacturer (OEM) part.

Key Features & Benefits

  • High-performance single-plane design for improved top-end power.
  • Includes dedicated fuel rails for a streamlined EFI installation.
  • Constructed from durable, lightweight aluminum for superior heat management.
  • Precision-machined runners ensure consistent airflow to every cylinder.
  • Perfect for performance builds, engine swaps, and racing applications.

Compatible Models

  • GM LS1 Engines (5.7L)
  • GM LS2 Engines (6.0L)
  • GM LS6 Engines (5.7L)
  • General Motors Gen III & Gen IV LS-based blocks

Product Specifications

  • Part Number: 300-137
  • Intake Style: Single Plane
  • Fuel Delivery: EFI (Electronic Fuel Injection)
  • Material: High-Grade Cast Aluminum
  • Kit Includes: Intake Manifold, Fuel Rails, and Mounting Hardware

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket replacement part designed to meet or exceed the performance of original equipment while offering exceptional value.

How do I confirm compatibility?
You can confirm fitment by verifying your engine type (LS1, LS2, or LS6) and ensuring the part number 300-137 matches your performance requirements and manifold height clearances.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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