fits model: 650.

( Brand: Pac ), ( Manufacturer Part Number: 1218X ), ( Part Type: Spring Valve )
The 1218x Springs Peened Valve PAC LSI Silicone 650 is a high-quality valve spring designed for various automotive applications. This particular model is distinguished by its unique dimensions of 12.18mm x 8mm, making it a versatile choice for a wide range of engine configurations.
The springs are manufactured using a specialized peening process, which involves hammering the coils to create a compressive stress on the surface. This process enhances the spring's fatigue life and improves its performance under high-stress conditions. The Peened Valve PAC LSI Silicone 650 is known for its excellent durability and reliability, ensuring optimal engine performance over an extended period.
The springs are made from silicone, a material that offers several advantages over traditional spring materials. Silicone is highly resistant to heat and corrosion, making it an ideal choice for high-temperature environments. Furthermore, silicone has excellent elasticity and can withstand repeated cycles of compression and extension without losing its shape or strength.
The 12.18mm x 8mm Peened Valve PAC LSI Silicone 650 is specifically designed for use with a 650-pound seat pressure. This makes it suitable for engines that require additional spring force to maintain proper valve control and combustion efficiency. The spring's high spring rate ensures precise valve timing and improved engine performance.
In summary, the 1218x Springs Peened Valve PAC LSI Silicone 650 is a top-of-the-line valve spring that delivers exceptional durability, heat resistance, and elasticity. Its unique dimensions and high spring rate make it a versatile choice for various automotive applications, ensuring improved engine performance and longevity.
Pros of buying 1218x springs peened valve pac LSI silicone 650:1. Improved performance: The peened valve design allows for better sealing, reducing leakage and improving overall valve performance.
2. High temperature resistance: The silicone material used in these valves has excellent heat resistance, making them suitable for high-temperature applications.
3. Long lifespan: The springs and valve components are designed to withstand repeated use, resulting in a longer lifespan compared to some other valve options.
4. Customizable: These valves are available in a range of sizes and specifications, allowing for customization to fit specific application requirements.
Cons of buying 1218x springs peened valve pac LSI silicone 650:1. Higher cost: Compared to other valve options, these valves can be more expensive due to their high-quality components and materials.
2. Limited availability: These valves may not be as widely available as other valve options, making it more challenging to find a supplier or distributor.
3. Potential for complex installation: Due to the peened valve design, installation may require more technical expertise than other valve options.
Conclusion:The 1218x springs peened valve pac LSI silicone 650 is a high-quality valve option that offers improved performance, high temperature resistance, and a long lifespan. However, its higher cost, limited availability, and potential for complex installation may make it less suitable for some applications. If the benefits of this valve outweigh the drawbacks for your specific application, it can be a worthwhile investment. It is recommended to research and compare the prices and specifications of different valve options to ensure that this is the best fit for your needs.
The price is for American made high performance polished peened processing for Pac1218x 16 premium polished peened beehive ls1 spring od call Shannon at with any questions.