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How much horsepower does a Lycoming IO 580 have?

Published in Aircraft Engine Specifications 2 mins read

The Lycoming IO-580 engine typically delivers 315 horsepower in its stock configuration, with the potential to reach 340 horsepower through specific performance enhancements.


Lycoming IO-580 Horsepower Breakdown

The Lycoming IO-580 series is a powerful, six-cylinder, fuel-injected aircraft engine known for its robust performance. Its horsepower output can vary based on its configuration and whether it includes optional performance modifications.

Stock Horsepower

In its standard form, such as the Lycoming IO-580-B1A model, the engine is designed to produce a substantial amount of power right off the assembly line. This baseline horsepower makes it suitable for a variety of demanding aviation applications.

  • Stock Horsepower: 315 hp

Enhanced Horsepower

For applications requiring even greater performance, the IO-580 can be upgraded. Specific modifications, such as an optional port and polish treatment, optimize the engine's airflow and combustion efficiency. These enhancements can significantly boost the overall power output.

  • Enhanced Horsepower (with optional port and polish): Up to 340 hp

This enhanced capability is often sought after in engine conversion kits, such as those designed to upgrade existing aircraft for improved climb rates, cruise speeds, and overall operational efficiency. For example, performance upgrades often feature this engine to provide a significant boost over original powerplants. You can find more information about such conversions on specialized aviation websites focusing on performance enhancements.

Horsepower Summary Table

To summarize the power outputs of the Lycoming IO-580:

Configuration Horsepower (hp) Description
Stock (IO-580-B1A) 315 Standard production engine output
Enhanced 340 With optional performance modifications (e.g., port and polish)

This range of horsepower makes the Lycoming IO-580 a versatile choice for a variety of general aviation aircraft, from high-performance singles to light twins, offering both reliable standard power and the potential for significant upgrades.