• Haytalras LS EFI Intake Manifold 300-137 main image
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image NaN
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image 17
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image 18
  • Haytalras LS1 LS2 LS6 Single Plane EFI Intake Manifold 300-137 for Cathedral Port - product image 19
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Haytalras Performance Parts

Haytalras Single Plane EFI Intake Manifold For GM LS1 LS2 LS6 300-137 Cathedral Port

Haytalras Single Plane EFI Intake Manifold For GM LS1 LS2 LS6 300-137 Cathedral Port

$249.00 USD
$249.00 USD
Sale Sold out

300-137

Free US shipping, excluding AK & HIFitment help before you order30-day return window
Fitment-first ordering

Confirm engine platform, port style, clearance, and install hardware before purchase. Email haytalras@gmail.com if your build is modified.

Package

Product Details

Haytalras Single Plane EFI Intake Manifold For GM LS1 LS2 LS6 300-137 Cathedral Port

Fitment note: Please check compatibility carefully before placing an order.

Description:

- EFI LS single plane mid-rise intake manifolds are great for your higher horsepower engine. Featuring cast aluminum construction, these manifolds are also great for centrifugal blower, turbocharged, or NOS mild power adder applications. The efficient casting design is lightweight--11.5 lbs.--with consistent wall thickness and strong mounting flanges. The optimized runner layout and constant cross sectional area offer a broad torque curve, with the best vehicle performance from 2,500 to 7,000 rpm. The mid-rise design offers minimum carb mounting flange height--without sacrificing power--and is another plus for vehicles with minimum hood modifications.

- Notes:Designed to fit cathedral port cylinder heads. This manifold will not work with factory fuel rails

- Notes:Please Check the Compatibility Carefully before Placing an Order.

Specifications

Specification:

Part Number: 300-137

Intake Manifold Height: 4.95 in.

Basic Operating RPM Range: 2500-7000

Intake Style: Single Plane

Intake Material: Aluminum

Engine Block Deck Height:Standaird deck

Fuel Injection Style: Multi-port

Package included:1 intake manifold&some parts shown in the picture

Vehicle Information:

- Compatible with Chevy Small Block and for GM LS1 LS2 LS6 5.7L 6.0L (EFI Single Plane Mid-Rise) V8 Engines

- Fit for Chevrolet Models:

- For Camaro V8 5.7L 1998-2002

- For Corvette V8 6.0L 2005-2007

- For Corvette V8 5.7L 1997-2004

- Fit for Cadillac Models:

- For CTS V8 5.7L 2004-2005

Not sure this fits?Send your engine platform, vehicle year, and current setup to haytalras@gmail.com before ordering. We will help you confirm fitment before the part ships.

Fitment & Compatibility

Use the product title, SKU, engine platform, and application notes as the primary fitment reference. If your vehicle has non-stock heads, intake setup, accessory drive, hood clearance, oil pan clearance, or swap mounts, contact Haytalras before ordering.

Shipping

Free standard shipping is available for orders shipping within the United States, excluding Alaska and Hawaii. Processing and delivery times may vary by SKU, destination, carrier, and order review status. Tracking is provided after fulfillment.

Returns & Warranty

Uninstalled, unused items may be eligible for return within 30 days after delivery. Keep the original packaging and contact Haytalras before sending anything back. Installed, modified, damaged, or fuel-contaminated parts may not be returnable.

Before Installation

Test-fit before final installation. Professional installation is recommended for performance parts. Check gasket surfaces, fastener torque, fuel and vacuum connections, sensor fitment, and hood or chassis clearance before starting the vehicle.

BUILT FOR REAL V8 PROJECTS

Performance parts buyers need fitment confidence, not guesswork.

Haytalras focuses on intake manifolds, oil pans, throttle bodies, and LS swap support hardware for street builds, classic muscle, and weekend track projects. Start with your engine platform, confirm the application notes, then reach out before purchase if the setup is modified.

01

Check Platform

Match SBC, BBC, SBF, BBF, Ford FE, LS, or your exact application before buying.

02

Confirm Clearance

Review hood, chassis, accessory, and oil pan clearance on swaps or non-stock builds.

03

Order With Support

Email haytalras@gmail.com with your build details if fitment is unclear.