QUALCAST 53-158216 Steel Intake Valves Head Oal 21-4N 2.165 5.450

( Brand: Qualcast ), ( Manufacturer Part Number: 53-158216 ), ( Part Type: Intake Valve Head ), ( Fitment Type: Performance/custom )

Review QUALCAST Chevrolet Stainless Steel Intake Valves 2.165 Head 5.450 Inch Oal fits LS3 450

Introducing the Qualcast 53-158216 Chevrolet LS3 Steel Intake Valves, designed specifically for engines with a 2.165-inch head and a 5.450-inch overall valve length. These intake valves are engineered to deliver superior performance and durability for your high-performance Chevrolet LS3 engine.

The valves are manufactured using premium steel material, ensuring strength and reliability. The 21-4n valve material provides excellent heat resistance and wear resistance, allowing the valves to perform optimally under extreme conditions. Each valve features a precise diameter and a well-balanced design, ensuring optimal flow and efficient combustion.

The intake valves have a 5.450-inch overall length, which is ideal for engines with a larger combustion chamber. The longer valve length increases the amount of fuel-air mixture that can be drawn into the cylinder, resulting in increased power and improved engine efficiency.

The valves come with a 2.165-inch head diameter, which is a standard size for high-performance engines. This diameter provides ample flow for high-performance applications, ensuring that your engine receives the necessary air and fuel mixture for optimal performance.

The Qualcast LS3 Steel Intake Valves are designed to fit perfectly into your Chevrolet LS3 engine. Each valve comes with a matching stem length, ensuring a seamless installation process. The valves are also compatible with standard intake ports, making them a versatile choice for various high-performance applications.

In summary, the Qualcast 53-158216 Chevrolet LS3 Steel Intake Valves are a high-performance upgrade for your Chevrolet LS3 engine. With their premium steel construction, precise dimensions, and optimal valve length, these intake valves deliver superior strength, reliability, and performance, making them an excellent choice for any high-performance application.

Pros and Cons of Buying Qualcast 53-158216 Chevrolet LS3 Steel 21-4n Intake Valves

The Qualcast 53-158216 Chevrolet LS3 Steel 21-4n Intake Valves are aftermarket intake valves designed for use in high-performance applications. These valves offer several benefits compared to the original equipment intake valves, but they also come with certain drawbacks. In this article, we will discuss the pros and cons of buying these intake valves for your Chevrolet LS3 engine.

1. Durability: The Qualcast intake valves are made of steel, which is a more robust material than the aluminum valves used in the original equipment. Steel valves can withstand higher temperatures and pressures, making them ideal for high-performance applications.

2. Longevity: The steel intake valves are designed to last longer than the stock valves. They can handle the increased demands of modified engines and provide better performance over an extended period.

3. Improved Air Flow: The Qualcast intake valves have a larger diameter and longer length than the stock valves. This results in improved air flow, which can lead to better engine performance and increased horsepower.

4. Enhanced Engine Sound: The larger intake valves produce a more distinctive engine sound, which is a desirable feature for many performance enthusiasts.

1. Cost: The Qualcast intake valves are more expensive than the stock intake valves. This may be a deterrent for some buyers who are working on a budget.

2. Installation: Installing aftermarket intake valves can be a complex process, especially for those who are not experienced in engine rebuilding. It may require the assistance of a professional mechanic or engine builder.

3. Potential Engine Damage: Installing aftermarket intake valves that are not properly matched to the engine can result in engine damage. It is crucial to ensure that the valves are compatible with the engine and are installed correctly.

The Qualcast 53-158216 Chevrolet LS3 Steel 21-4n Intake Valves offer several advantages for high-performance applications, including improved durability, longevity, air flow, and engine sound. However, they also come with some drawbacks, such as cost, installation complexity, and potential engine damage if not installed correctly. Ultimately, the decision to purchase these intake valves depends on your budget, experience level, and performance goals. If you are looking to maximize the performance of your Chevrolet LS3 engine and are willing to invest in high-quality aftermarket parts, then the Qualcast intake valves are an excellent option. However, if you are on a tight budget or are not experienced in engine rebuilding, then it may be best to stick with the stock intake valves.

Details:

Chevrolet LS3 376 CID Engines: Street Performance Valves 550 length 21-4N Stainless Steel, ITEM SPECIFICATIONS, 8 INTAKE VALVES, Stem Diameter: .3135, Head 2.165, Valve length : 5.450, Tip to Groove 0.340, Notes: 1 Groove, Chrome-Plated and Undercut Stems. 8:30 am to 5:00 pm PST. They have swirl polished dunderheads, chrome-plated stems, and Wafer-welded tips. They are packaged in MATCHED sets of 8 per box.

part #: 53158216 prices

• $63.28-$150.00

specifications voomvalve:

• for models: Ls3, 450
• for makes: Chevrolet
• brand: Qualcast
• mpn: 53-158216
• part type: Intake Valve Head
• fitment type: Performance/custom

shipping voomvalve:

• carrier: USPS
• cost: $14.00
• class: Expedited
• transit: 2-6 Days
• service: USPS Priority Mail
• type: Fixed

returns voomvalve:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller voomvalve:

• city: Mulino, Oregon
• rating: 99.8%
• # reviews: 8586

offer voomvalve:

• quantity: 2
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 15, 2026

payments voomvalve:

• wallet: Apple-pay
• credit card: Mastercard
• other

general voomvalve:

• Engines Engine Parts > Valvetrain Components > Valves
• condition: New

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