fits model: 550, 700. year: 2015.

( Brand: Pac ), ( Manufacturer Part Number: 4151212 ), ( Part Type: Roller Valve Spring Cam Lift )
Introducing the Pac Victor Racing Pac-14151212 1.550 inch Od, 700 Lift Circle Track Dual Roller Cam Valve Springs. Designed specifically for high-performance circle track applications, these valve springs are engineered to deliver optimal power and reliability.
The 1.550 inch outside diameter (OD) of these valve springs is engineered to accommodate larger valves, maximizing air and fuel flow for enhanced horsepower and torque. The 700 lift height ensures proper valve control under high RPM conditions, enhancing engine performance and efficiency.
These Pac Victor Racing valve springs feature a dual roller design, which significantly reduces valve spring force required and valve train friction, leading to improved power output and longer lasting performance. The roller design also provides better valve control and reduced valve float at high RPM, crucial for circle track racing and high-performance applications.
These valve springs are manufactured using the highest-quality materials, including chrome silicon alloy wire. The chrome silicon alloy is specifically chosen for its excellent compressive strength and temperature stability, ensuring reliable performance under the most demanding conditions. Additionally, the springs are heat treated and shot-peened to ensure optimal fatigue resistance and consistent performance.
The Pac Victor Racing Pac-14151212 valve springs come with retainer collars included in the kit for easy installation on most applications. These valve springs are suitable for use in high RPM, high-horsepower applications and are recommended for use with advanced racing engines found in circle track racing and other high-performance applications.
In conclusion, the Pac Victor Racing Pac-14151212 1.550 inch Od, 700 Lift Circle Track Dual Roller Cam Valve Springs are a must-have for any high-performance circle track application. Designed for maximum power output, reliability, and ease of installation, these valve springs deliver unmatched performance and are a worthwhile investment for any racing or high-performance engine builder.
The Pac 4151212 1.550 Od, 700 lift circle track dual roller cam valve springs are a popular upgrade for high performance and racing applications. These springs offer several advantages over stock springs, but they also come with some drawbacks. In this article, we will discuss the key pros and cons of purchasing these valve springs.
Pros:1. Enhanced Performance: The primary reason for using dual roller cam valve springs in racing applications is to enhance the performance of the engine. These springs offer improved valve control, resulting in better power output, improved torque, and increased engine response.
2. Durability: Dual roller cam valve springs are designed to handle the extreme conditions encountered in racing environments. They offer increased durability compared to stock springs, allowing the engine to rev higher and provide more horsepower.
3. Precision: The use of dual roller cam valve springs offers increased precision in valve operation. This results in more consistent fuel-air mixture and better combustion efficiency, ultimately leading to increased power output and improved engine performance.
Cons:1. Cost: The Pac 4151212 1.550 Od, 700 lift circle track dual roller cam valve springs are more expensive than stock springs. They are a high-performance upgrade and often require specialized installation, increasing the overall cost.
2. Complex Installation: Installing these valve springs can be a complex process, as they require precise installation techniques and specialized tools. This installation process may require the assistance of a professional mechanic or engine builder, adding to the overall cost.
3. Risk of Damage: Due to their high-performance design, dual roller cam valve springs carry a higher risk of damage compared to stock springs. A mis-timed valve event or a failure during operation can result in significant damage to the engine or the surrounding components, potentially leading to costly repairs.
Conclusion:The Pac 4151212 1.550 Od, 700 lift circle track dual roller cam valve springs offer significant performance advantages over stock springs for high-performance and racing applications. However, they also come with a higher cost, complex installation process, and increased risk of damage. Ultimately, the decision to purchase these valve springs should be based on your budget, performance goals, and technical expertise. If you have the resources and the desire to upgrade your engine for high-performance applications, then these valve springs could be a worthwhile investment. Otherwise, stock springs may be the better choice for your needs.
Recommendation:Before making a decision, consider the specific requirements of your application and evaluate the benefits and drawbacks carefully. Consult with a professional mechanic or engine builder to determine whether the Pac 4151212 1.550 Od, 700 lift circle track dual roller cam valve springs are the right upgrade for your engine. Additionally, ensure that you have the necessary expertise and resources to install these springs correctly and safely to minimize the risk of damage.
Item MPN: 4151212. Item Brand: PAC. 1200 series springs come with PAC racing proprietary heat treat process that will allow for outstanding load loss and durability. This Listing Is For A Set Of 15 PAC-1200 Circle Track Dual Roller Cam Valve Springs 1.550 OD .700 Lift.
The 1200 series springs were developed for the Sportsman racer looking a quality but budget minded product.