fits model: 540.

( Brand: Lycoming ), ( Manufacturer Part Number: 68579 ), ( Part Type: Arm ), ( Country/region Of Manufacture: United States )
The 68579 nos Lycoming rocker arms are an essential component of your Lycoming engine's valvetrain system. These rocker arms are designed to provide a smooth and precise opening and closing of the engine's intake and exhaust valves. They are manufactured to exacting specifications, ensuring a perfect fit and optimal performance.
The 68579 nos Lycoming rocker arms are available for various engine models, including those with displacements of 235, 290, 320, and 540 cubic inches. Each rocker arm is precision-machined from high-quality steel for strength and durability. They feature a hardened, polished cam-lobe bearing surface, ensuring a long lifespan and minimal wear.
The 68579 nos Lycoming rocker arms come in a pack of two, one for each cylinder bank. They are designed to work seamlessly with Lycoming's hydraulic lifter system, ensuring consistent valve clearance and eliminating the need for adjustment. The arms are also designed to be easy to install, with clear markings to help you correctly align them with the valve stems.
In summary, the 68579 nos Lycoming rocker arms are a high-quality, reliable replacement for your engine's original rocker arms. They are precision-manufactured, designed to fit various engine models, and feature a hardened, polished cam-lobe bearing surface for durability. With their easy installation and seamless integration with Lycoming's hydraulic lifter system, these rocker arms are an excellent choice for maintaining the performance and longevity of your Lycoming engine.
Pros of buying 68579 nos Lycoming rocker arms (235, 290, 320, 540):1. Compatibility: These rocker arms are specifically designed for Lycoming engines, ensuring a perfect fit and function.
2. Quality: As new, high-quality parts, these rocker arms can provide improved engine performance and increased engine life.
3. Availability: As they are OEM (original equipment manufacturer) parts, they are widely available, making it easier to find replacement parts.
Cons of buying 68579 nos Lycoming rocker arms (235, 290, 320, 540):1. Cost: New parts like these can be expensive, especially for larger engines like the 540.
2. Installation: Installing the rocker arms may require specialized tools and knowledge, which can add to the overall cost and time involved.
Conclusion: If you are looking for high-quality, OEM-compatible parts for your Lycoming engine, then the 68579 nos Lycoming rocker arms are a good option. However, due to their cost and potential installation challenges, it's important to consider your budget and expertise before making a purchase. Consider weighing the benefits of improved engine performance and increased engine life against the cost of the parts and installation.
Recommendation: If you have the budget and expertise, buying new 68579 nos Lycoming rocker arms can be a great investment in the long-term performance and longevity of your engine. If cost is a concern, consider exploring alternative options such as used or remanufactured parts, but be sure to research their quality and compatibility with your specific engine model before making a purchase.
They are in their original factory packaging. Free shipping applies to continental USA only.
Two Lycoming rocker arms, P/N these are new old stock surplus parts.