Holley
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Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6
Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6
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Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6
Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6
Ideal manifold for centrifugal blower, turbocharger or nitrous power adders
Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6
Item #: 12282057

Holley EFI 300-137 Single Plane EFI Intake - GM LS1/LS2/LS6

87% of respondents would recommend this to a friend

Item #: 12282057

GBP 452

GBP 503

Price Details

Price
GBP 452

Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )

10%

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us Imported from USA store

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Only 4 items left in stock.
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Saturday, September 12
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Ideal manifold for centrifugal blower, turbocharger or nitrous power adders
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What Stands Out

Optimized Airflow
The Holley 300-137 features a single plane design that maximizes airflow, enhancing engine performance and throttle response for higher RPM ranges.
EFI Compatibility
This intake is specifically designed for EFI systems, ensuring seamless integration and precise fuel management for improved efficiency and power.
Versatile Fitment
Engineered for a variety of mid-rise applications, the Holley 300-137 offers versatile fitment options, making it an ideal choice for performance enthusiasts looking to upgrade their engine setup.

Product Details

Find the best deals on Holley 300-137 LS1LS2LS6 Single Plane Intake Manifold at Ubuy UK. Designed for performance-minded LS engines, this cast aluminum intake manifold offers a broad torque curve and the lowest carb flange height for improved hood clearance. Ideal for higher horsepower engines and power adders like forced induction or nitrous oxide.
Brand NameHolley
Model Name300-137
ModelHOL 300-137
Number of Items1
ManufacturerHolley
UPC090127687758
Unit Count1 Count
Global Trade Identification Number00090127687758
Included ComponentsHolley 300-137 Left Side Single Plane Mid Rise EFI
Item Type NameHolley 300-137 Left Side Single Plane Mid Rise EFI Intake
Part NumberHOL 300-137
Speed2500 rpm
Item Weight6.3 kg
Material TypeAluminum
BrandHolley
MaterialAluminum
Country of OriginThis item will be imported from US

What's in the box

Holley 300-137 Left Side Single Plane Mid Rise EFI

Who Should Buy?

Suitable For
  • High Performance Builds

    Ideal for enthusiasts aiming for increased horsepower and torque in their modified engines.

  • EFI Conversions

    Perfect for those converting to EFI, providing optimized airflow for digital fuel injection systems.

  • Race Applications

    Designed for competitive racing environments where maximum intake efficiency is crucial for winning performance.

Not Suitable For
  • Daily Drivers

    Not suitable for regular use, as it may impact fuel economy and drivability in street conditions.

Product Description

About This Item

Introducing the Holley 300-137 LS1LS2LS6 Single Plane Intake Manifold - the ultimate performance upgrade for your GM Gen III and IV LS engine. Holley is a trusted industry leader renowned for its high-quality LS engine performance parts, and this intake manifold is no exception. Designed for both carbureted and EFI applications, it is perfect for higher horsepower engines and those incorporating power adders like forced induction or nitrous oxide. One of the standout features of this intake manifold is its advanced casting technology, resulting in a lightweight design that weighs in at only 11.5 lbs.

But don't let its light weight fool you - it is built for power. The runner design features a constant cross-sectional area, delivering a broad power band from 2,500 to 7,000 RPM. Consistent wall thickness throughout the manifold ensures balanced performance and sealing strength, while the lowest carb mounting flange height possible optimizes hood clearance without sacrificing power. Additionally, this intake manifold is available with machined ports for EFI installation, making it a versatile choice for various setups. Whether you're running a centrifugal blower, turbocharger, or nitrous power adders, the Holley 300-137 LS1LS2LS6 Single Plane Intake Manifold is the ideal choice.

Its exceptional design and construction make it a top performer in its class, guaranteed to deliver the power and torque you need. Upgrade your LS1, LS2, or LS6 engine with this top-of-the-line intake manifold from Holley. Experience improved performance, increased horsepower, and enhanced throttle response. Don't settle for anything less than the best - choose the Holley 300-137 LS1LS2LS6 Single Plane Intake Manifold for your LS engine today. Keywords: Holley LS1LS2LS6 Single Plane Intake Manifold, Holley 300-137 LS1LS2LS6, Holley Intake Manifold, Holley LS1LS2LS6 Intake, Single Plane Intake Manifold, LS1LS2LS6 Intake Manifold, Holley LS1 Intake, Holley LS2 Intake, Holley LS6 Intake, Holley LS1LS2LS6 Performance Parts, LS1LS2LS6 Aftermarket Intake, Holley LS1LS2LS6 Engine Upgrade, Holley LS1LS2LS6 Tuning, Holley LS1LS2LS6 Modifications, Holley LS1LS2LS6 Upgrades, Holley LS1LS2LS6 Accessories, Holley LS1LS2LS6 Parts, Holley LS1LS2LS6 Components, Holley LS1LS2LS6 Intake Manifold Kit, Holley LS1LS2LS6 Air Intake, Holley LS1LS2LS6 Throttle Body, Holley LS1LS2LS6 Cylinder Head, Holley LS1LS2LS6 Camshaft, Holley LS1LS2LS6 Exhaust.

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Customer Questions & Answers

  • Question: Will this fit cathedral port heads?

    Answer: Yes it will fit cathedral port heads.
  • Question: Is this for cathedral port heads?

    Answer: Yes.
  • Question: Does this come with pre drilled vacuum port for map sensor brake booster and hvac controlls?

    Answer: Just the single 3/8 NPT port on the back of the manifold, with additional details provided regarding using external vacuum tee or manifold for other connections.
  • Question: Will this work on a GM 5.3 engine? Trying to convert to carburetor.

    Answer: No, it has holes for the fuel injectors. You will need 300-132.
  • Question: Can u use this intake with a carburettor?

    Answer: No, the holes for the injectors will cause a horrible vacuum leak. I recommend Holley 300-132.
  • Question: Will a edelbrok 650 carb fit this intake ??

    Answer: Yea its square bore design but its drilled for fuel injectors on each port.

Holley Intake Manifolds Editorial Review

  • ubuy UK
  • ubuy UK
  • ubuy UK

The Holley 300-137 LS1/LS2/LS6 Single Plane Intake Manifold is designed to fit cathedral port heads and is not compatible with a carburetor. One user noted that the manifold only has a single 3/8 NPT port on the back and may require additional modifications for other vacuum ports. Another customer pointed out that the intake has holes for fuel injectors, making it unsuitable for a carburetor, and suggested the Holley 300-132 for that purpose. It's crucial to ensure compatibility with the specific engine and intake needs. In summary, the Holley 300-137 LS1/LS2/LS6 Single Plane Intake Manifold is specifically built for cathedral port heads and is not suitable for use with a carburetor due to the presence of fuel injector holes.

Customer Reviews & Ratings

11 customers ratings
  • 5 Star
    81%
  • 4 Star
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  • 1 Star
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Pros

  • Fits cathedral port heads
  • Sturdy Construction

Cons

  • Limited vacuum ports

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GBP 452

GBP 503
Excluding VAT : VAT will be calculated on the checkout page

Order now and get it around Saturday, September 12

QTY:

Only 4 items left in stock.
Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Ideal for higher horsepower engines and power adders
  • Advanced casting technology, lightweight design at 11.5 lbs
  • Constant cross-sectional area for a broad power band
  • Consistent wall thickness for balanced performance
  • Lowest carb flange height without sacrificing power
  • Available for both carbureted and EFI applications

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