ENGINETECH V4371 Car Intake Exhaust Valves 346 5.7L

( Brand: Enginetech ), ( Manufacturer Part Number: V4371 ), ( Part Type: Intake Valve Exhaust ), ( Fitment Type: Direct Replacement )

Review ENGINETECH 346 Fits Chevrolet Pontiac Car 5.7l Intake And Exhaust Valves fits LS1 1997–2004

The Engine Tech V4371 346 intake exhaust valves are a high-performance upgrade designed specifically for 1997-2004 Chevrolet and Pontiac vehicles equipped with the 5.7L LS1 engine. These valves are an essential upgrade for enthusiasts seeking to maximize engine performance, improve throttle response, and enhance overall driving experience.

Each intake exhaust valve is meticulously engineered using a high-strength, forged steel construction. This robust design not only ensures superior durability but also allows for optimal airflow and efficient combustion. The valves feature a unique, high-lift design, which increases the intake and exhaust flow rates, resulting in a more potent power output.

The Engine Tech V4371 346 intake exhaust valves are matched with high-performance, titanium retainers. These retainers are lighter than their stock counterparts, reducing rotational mass and allowing the valves to respond more quickly to throttle inputs. Furthermore, they are more resilient to heat and engine stress, ensuring a longer service life.

The valves are equipped with a roller tip design for the intake valves and a flat-top design for the exhaust valves. The roller tip intake valves reduce the friction between the valve and the cylinder head, contributing to improved engine efficiency and power output. The flat-top exhaust valves promote better exhaust gas flow and minimize the backpressure, resulting in a freer-flowing exhaust system and improved power delivery.

These high-performance intake exhaust valves come with matching springs and locks to ensure a proper fit and function in your engine. The valves are also compatible with factory and aftermarket camshafts, allowing for a wide range of customization options to suit various performance goals.

In summary, the Engine Tech V4371 346 intake exhaust valves are a top-tier upgrade for 1997-2004 Chevrolet and Pontiac LS1 engines. These valves offer increased power output, improved throttle response, and enhanced durability, making them an ideal choice for enthusiasts seeking to unlock the full potential of their LS1 engine.

Pros and Cons of Buying Engine Tech V4371 346 Intake Exhaust Valves for 1997-2004 Chevrolet Pontiac Cars with 5.7L LS1 Engine

The Engine Tech V4371 346 intake exhaust valves are aftermarket performance parts designed to enhance the airflow and overall performance of the 5.7L LS1 engines used in various Chevrolet and Pontiac models between 1997 and 2004. Like any aftermarket part, these valves have their advantages and disadvantages. In this article, we will discuss the pros and cons of buying these intake exhaust valves.

1. Improved Airflow: The Engine Tech V4371 346 intake exhaust valves are designed to provide better airflow into the engine, which results in increased horsepower and torque.

2. Enhanced Engine Response: These valves can improve the engine's response time, making the vehicle more responsive when accelerating.

3. Durability: The Engine Tech V4371 346 intake exhaust valves are made from high-quality materials, ensuring that they last longer than the stock valves.

4. Increased Power: By improving airflow and engine response, these valves can help increase the overall power output of the engine.

5. Better Throttle Response: These valves can help improve the vehicle's throttle response, making it easier to accelerate and pass other cars on the highway.

1. Cost: Aftermarket intake exhaust valves like the Engine Tech V4371 346 can be quite expensive, especially when compared to the cost of stock valves.

2. Installation Complexity: Installing aftermarket intake exhaust valves can be a complex process, requiring specialized tools and a good deal of mechanical knowledge.

3. Potential for Engine Knocking: In some cases, installing aftermarket intake exhaust valves can cause engine knocking or pinging, which can be damaging to the engine if not addressed.

4. Potential for Vehicle Instability: Depending on the specific vehicle and the driving conditions, installing aftermarket intake exhaust valves can make the vehicle more unstable or difficult to control.

5. Potential for Excessive Noise: Some drivers may find that the Engine Tech V4371 346 intake exhaust valves produce excessive noise, which can be annoying or even disruptive.

The Engine Tech V4371 346 intake exhaust valves offer several advantages, including improved airflow, enhanced engine response, increased power, and better throttle response. However, they also come with some disadvantages, such as cost, installation complexity, potential engine knocking, vehicle instability, and excessive noise. Ultimately, the decision to buy these valves depends on the individual driver's priorities, mechanical expertise, and budget.

If you are a serious performance enthusiast with a good deal of mechanical knowledge and a significant budget, the Engine Tech V4371 346 intake exhaust valves may be worth considering. However, if you are a casual driver or have limited mechanical expertise, you may want to consider other options or seek professional advice before making a purchase. Regardless of your decision, it's important to remember that aftermarket parts like these should always be installed by a qualified professional to ensure optimal performance and safety.

Details:

Enginetech valve are a one-piece design made from the finest chrome and high nickel stainless steel alloy with superior stem finish. The installed stem height is made so that you don't have to grind the tips. 8 EXHAUST VALVES, Stem Diameter: 8.00mm, Head 1.551, Valve length : 4.923, 0.3127, Notes: Chrome Stem, 1 Groove, 23-8N Stainless. Fits 1997 - 2004 Chevrolet Pontiac 5.7L 346 V8 16V LS1 LS6 - 8 INTAKE AND 8 EXHAUST VALVES.

8:30 am to 5:00 pm PST.

part #: v4371 prices

• $25.99-$29.12

specifications voomvalve:

• for models: Ls1
• for makes: Chevrolet, Pontiac
• for years: 1997-2004
• brand: Enginetech
• mpn: V4371
• part type: Intake Valve Exhaust
• fitment type: Direct Replacement

payments voomvalve:

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• time: 30 Days
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• paid by: Seller

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• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 5
• started: December 16, 2025

seller voomvalve:

• city: Mulino, Oregon
• rating: 99.5%
• # reviews: 7865

general voomvalve:

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

shipping voomvalve:

• cost: $12.50
• carrier: USPS
• service: USPS Priority Mail
• transit: 3-7 Days
• type: Fixed
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