Dorman Intake Manifold Review : 615-380KIT

In the world of automotive maintenance and repair, finding high-quality replacement parts that deliver both reliability and affordability can be a challenging task.


One such product that has garnered attention among car enthusiasts and DIY mechanics is the Dorman 615-380 KIT Intake Manifold and Valve Cover Kit. This kit is compatible with select Buick and Chevrolet models and promises to be a solution to common issues in these vehicles

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In this comprehensive review, we will delve deep into the features, benefits, installation process, and real-world performance of the Dorman 615-380 KIT to help you make an informed decision when considering this product for your car.

The Dorman 615-380 KIT is designed to address two critical components in an automobile’s engine system: the intake manifold and the valve cover. Let’s take a closer look at what these components do and why they are vital for the proper functioning of your vehicle.

Intake Manifold

The intake manifold plays a crucial role in the engine’s operation by delivering a mixture of air and fuel to the engine cylinders. This mixture is essential for combustion, as it provides the oxygen necessary for the combustion process.

The design and condition of the intake manifold can significantly affect the engine’s performance, fuel efficiency, and emissions. Over time, intake manifolds can develop cracks, leaks, or other issues that compromise their functionality.

Valve Cover

The valve cover, also known as the rocker cover, is a component that encloses the top of the engine cylinder head. It serves multiple purposes, including keeping the engine oil inside the cylinder head and preventing debris and contaminants from entering.

Valve covers are typically made of metal or plastic and can deteriorate due to temperature changes and exposure to engine oil, leading to oil leaks and other problems.

Dorman 615-380 KIT Features and Specifications

Dorman 615-380KIT Intake Manifold review

Now that we have a clear understanding of the components this kit addresses, let’s dive into the features and specifications of the Dorman 615-380 KIT.


The Dorman 615-380 KIT is designed to be compatible with select Buick and Chevrolet models. It is essential to verify your vehicle’s compatibility before purchasing the kit to ensure a proper fit and optimal performance.


One of the standout features of this kit is the “OE FIX” designation. This indicates that Dorman has engineered the components to address known issues and improve upon the original equipment (OE) design. In other words, Dorman aims to fix common problems associated with intake manifolds and valve covers in the specified vehicle models.

Materials and Construction

The quality of materials used in automotive components can significantly impact their longevity and performance. The Dorman 615-380 KIT is constructed from high-quality materials to ensure durability and reliability. It is typically made from a combination of aluminium, steel, and other suitable materials, depending on the specific components included in the kit.

Gaskets and Seals

The kit comes with gaskets and seals that are essential for achieving a proper seal between the intake manifold, valve cover, and the engine block. These gaskets are designed to prevent leaks and ensure the components function optimally.

Installation Hardware

To simplify the installation process, the Dorman 615-380 KIT includes all the necessary hardware, such as bolts and fasteners. This reduces the need for additional purchases and ensures that you have everything required for a successful installation.

DIY vs. Professional Installation

Depending on your level of automotive expertise, you may choose to install the kit yourself or have it professionally installed. If you are confident in your abilities and have the necessary tools, DIY installation can save you money. However, if you’re unsure or uncomfortable with the process, it’s advisable to seek the assistance of a qualified mechanic.

Installation Steps

dorman intake manifold review

The specific installation steps may vary depending on your vehicle’s make and model. However, here’s a general overview of the installation process for the Dorman 615-380 KIT:

Step 1 :  Begin by disconnecting the battery to ensure safety during the installation.

Step 2:  Remove any components obstructing access to the intake manifold and valve cover. This may include air intake components, hoses, and electrical connections.

Step 3 :  Carefully detach the old intake manifold and valve cover from the engine block. Be sure to clean the mating surfaces thoroughly to ensure a proper seal with the new components.

Step 4 :  Install the provided gaskets and seals onto the new intake manifold and valve cover.

Step 5 :  Secure the new components in place using the included hardware, following the manufacturer’s torque specifications.

Step 6 : Reconnect any hoses, electrical connections, and components that were removed during the disassembly process.

Step 7 :  Reconnect the battery and start the engine to check for any leaks or abnormalities.

Step 8 :  If everything appears to be in order, you can proceed to reassemble any remaining components that were removed.

Real-World Performance

The true test of any automotive replacement part lies in its real-world performance. In this chapter, we will examine the Dorman 615-380 KIT’s performance based on user experiences and expert opinions.

Improved Functionality

Many users have reported a noticeable improvement in their vehicle’s functionality after installing the Dorman 615-380 KIT. This often includes smoother engine operation, reduced oil leaks, and improved fuel efficiency.

Durability and Longevity

The kit’s construction from high-quality materials has contributed to its durability. Users have reported that the components have held up well over time, even in challenging driving conditions. This can be especially important for those who rely on their vehicles for daily transportation.

Reduced Maintenance Costs

One of the primary reasons for choosing the Dorman 615-380 KIT is its ability to address common issues with intake manifolds and valve covers. By preventing leaks and other problems, the kit can significantly reduce ongoing maintenance costs, including the need for frequent oil changes and repairs.

Final Words

In conclusion, the Dorman 615-380 KIT Intake Manifold and Valve Cover Kit has proven to be a valuable solution for addressing common issues in select Buick and Chevrolet models. Its compatibility, OE FIX designation, quality materials, and included hardware make it an attractive option for both DIY enthusiasts and professional mechanics.

By addressing issues such as oil leaks and improving overall engine performance, this kit not only enhances the driving experience but also reduces long-term maintenance costs. While the installation process may be a bit daunting for beginners, seeking professional assistance can ensure a successful installation and maximize the benefits of the kit.

Ultimately, the Dorman 615-380 KIT serves as a testament to the importance of high-quality aftermarket automotive parts in

 extending the lifespan and performance of vehicles. If you own a compatible Buick or Chevrolet model and are experiencing issues with your intake manifold and valve cover, the Dorman 615-380 KIT is certainly worth considering as a cost-effective and reliable solution.

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