89591-16 COMP CAMS Engine Valve Kit

Review COMP CAMS Engine Valve Lifter Kit

The COMP Cams 89591-16 Engine Valve Kit is a high-performance upgrade for your engine, designed to deliver increased power and improved engine efficiency. This valve kit is specifically engineered for Ford Modular engines, including those found in applications like the Mustang GT, and is ideal for both street and racing use.

The heart of this valve kit is the high-lift, roller rocker arms. These arms are designed to provide maximum lift and duration for improved power and torque throughout the RPM range. The roller design reduces friction and wear, leading to longer valve train life and improved engine response.

The valves themselves are made from durable, heat-treated steel for strength and durability. The intake valves feature a 2.050-inch diameter, while the exhaust valves measure 1.600 inches in diameter. The valves are also equipped with a controlled-hydraulic, flat-tappet design, which provides excellent lift and flow characteristics for optimal power production.

The valve springs in this kit are also upgraded, with a high-performance, double-spring design. This design provides improved load capacity and consistent valve control, ensuring reliable operation under high RPM conditions. The springs are also made from high-strength material for added durability.

The COMP Cams 89591-16 Engine Valve Kit includes all necessary hardware for installation, including pushrods, lifters, and retainers. The kit also includes new valve guides, which are precision-machined for a perfect fit and optimal sealing.

In summary, the COMP Cams 89591-16 Engine Valve Kit is a high-performance upgrade for Ford Modular engines, designed to deliver increased power, improved efficiency, and extended valve train life. With upgraded roller rocker arms, durable valves, high-performance springs, and all necessary hardware included, this kit is an excellent choice for both street and racing applications.

Pros and Cons of Buying a COMP Cams 89591-16 Engine Valve Kit

The COMP Cams 89591-16 Engine Valve Kit is a popular aftermarket valve train solution for various applications. This kit offers several benefits and drawbacks that can impact the decision to purchase it. Here's a detailed analysis of the pros and cons to help you make an informed decision.

1. Enhanced Performance: The COMP Cams valve kit is designed to optimize the engine's performance by improving the intake and exhaust flow. This results in better power and torque output.

2. Customizable: This kit caters to various engine sizes and configurations, allowing users to choose the appropriate valve sizes and springs for their specific application.

3. Durability: COMP Cams uses high-quality materials and manufacturing processes to ensure the valve kit lasts longer than stock parts.

4. Lighter Valves: The COMP Cams valve kit includes lighter valves, reducing the overall weight of the valvetrain, leading to quicker revving and better response.

5. Improved Engine Response: The valve kit allows the engine to respond better to throttle inputs, enhancing the driving experience.

1. Cost: The COMP Cams 89591-16 Engine Valve Kit can be more expensive than stock valves, which may deter some buyers.

2. Installation Complexity: Installing the valve kit may require advanced mechanical skills and tools, potentially increasing the cost of the project.

3. Potential Power Increase: While the power increase can be desirable, it may not be suitable for all applications, especially those that don't require additional power.

4. Compatibility: The valve kit may not be compatible with all engines or aftermarket parts, which could limit its usability.

5. Noise: Depending on the specific application, the valve kit may increase engine noise, which could be a concern for some users.

The COMP Cams 89591-16 Engine Valve Kit offers significant performance improvements and customization options for engine enthusiasts. However, it comes with a higher cost, potential installation complexity, and compatibility limitations. Ultimately, the decision to purchase the kit depends on your specific application requirements, budget, and mechanical skills. If you're looking for a high-performance valve train solution, the COMP Cams 89591-16 Engine Valve Kit is an excellent choice. However, if you're on a tight budget or prefer a simpler solution, there may be other options to consider.

If you're considering purchasing the COMP Cams 89591-16 Engine Valve Kit, make sure to thoroughly research its compatibility with your engine and any other aftermarket parts you may be using. Additionally, consider your budget, mechanical skills, and desired performance increase to determine if this kit is the right choice for you. If you're unsure, consult with a professional mechanic or engine builder for advice.

Details:

Lifter style: hydraulic roller. Lifter - evolution retro-fit hydraulic roller 0.842 in OD gm w-series set of 16 menu. Comp Cams 89591-16 - engine valve lifter kit.

Finish: natural. Body diameter: 0.842 in.: lifter - evolution retro-fit hydraulic roller 0.842 in OD gm w-series set of 16. Bearing style: needle.

Roller bearing / bushing. Color: natural. Product line: evolution retro-fit. Material: steel.

specifications liftkitsparts:

• brand: Comp Cams
• mpn: 89591-16
• part type: Valve Engine Lifter
• upc: 036584417415

general liftkitsparts:

• category: Auto Parts > Chassis, Suspension Brakes > Lift Kits

offer liftkitsparts:

• in stock #: 5
• sold #: 15
• options: ship-to-home
• started: october 2, 2025
• prices: $826.07–$855.70
• item condition: New
• availability: in stock

shipping liftkitsparts:

• class: standard
• transit: 3-6 days
• service: standard
• type: fixed

returns liftkitsparts:

• paid by: seller
• time: 30 days
• policy: returns accepted

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• wallet: paypal
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seller liftkitsparts:

• # reviews: 45186
• city: saint paul, minnesota
• rating: 96.9%