BMW F87 M2 Engine Block N55B30A 370HP 7585986

BMW F87 M2 Engine Block N55B30A 370HP is an original component from the Engine blocks category, designed for advanced powertrain repairs in BMW sports models. This used engine block provides a solid foundation for rebuilding the 370 HP N55B30A engine, allowing you to maintain the factory performance characteristics and high durability of the unit.

Specifications and technical data

• SKU: 7585986
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7585986
• Substitutable numbers: 7585986
• Part type: Engine Block
• Category: Engine Blocks

Purpose and technical specifications

The presented block is dedicated to the N55B30A unit used in the BMW F87 M2 model, which ensures proper geometry, appropriate structural rigidity, and compatibility with the accessories intended for this engine version. By maintaining the original architecture of the oil and cooling channels, it serves as a precise base for building an engine with a stock output of 370 HP, without the need for structural compromises.

Its original BMW origin means that factory manufacturing tolerances are preserved, which is crucial when installing the crankshaft, pistons, bearings, and cylinder head. Such a block allows for the restoration of engine operating parameters in accordance with the manufacturer's specifications, which is particularly important in vehicles with a sporty character.

Service and tuning applications

The N55B30A engine block from the BMW F87 M2 is suitable for both professional workshops specializing in the BMW brand and individual projects where high load resistance is required. It can be used as a base for:

• comprehensive powertrain rebuilding after mechanical damage or overheating,
• transferring accessories from an existing engine to a verified engine block,
• modification projects where maintaining the original BMW block is key.

By using an original block from the M2 series, it is possible to maintain proper structural rigidity and thermal stability, which translates into consistent performance and predictable engine behavior during dynamic driving.

Condition, verification, and component selection

The item comes from dismantling and has the status of a used engine block, which in practice means a favorable compromise between repair costs and maintaining original BMW quality. Choosing this solution is particularly attractive in cases of severe damage to the factory engine, where regenerating the existing block is unprofitable or technically difficult.

Before installation, standard workshop procedures are recommended, such as checking the flatness of mating surfaces, verifying the condition of main bearing seats, and assessing oil and cooling channels. This allows the block to be prepared for further work in accordance with the requirements of a specific project – from stock rebuilding to more advanced configurations.

Technical support and related components

When working with turbocharged units such as the N55B30A, it is also crucial to ensure an efficient cooling system to avoid overheating and secondary damage to the newly assembled engine. It is worth checking out practical tips regarding diagnostics and cooling system service described in the article Engine cooling system – overheating, repair, and used radiators, which discusses the impact of operating temperature on the engine's lifespan.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as housings, engine blocks, or other core powertrain elements, check out the available parts in the BMW Engine blocks category.

Benefits of choosing an original BMW block

By choosing an original BMW engine block from dismantling, you gain a structure designed exactly for the specific N55B30A unit, which facilitates installation and reduces the risk of fitment issues. Maintaining factory mounting points and geometry makes the work easier for mechanics and reduces vehicle downtime.

For BMW F87 M2 owners, this means the ability to restore the full efficiency of the powertrain while maintaining the original engine operating characteristics, which is important both in daily use and during track days or dynamic road driving.