Audi S4 B7 4.2 FSI Quattro Petrol Bare Engine BBK 344HP with 99k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Audi S4 B7 4.2 FSI Quattro Petrol Bare Engine BBK 344HP with 99k miles, WARRANTY is a perfect choice for drivers and workshops looking for a factory, naturally aspirated V8 for advanced repairs or performance projects. This bare engine block provides a solid foundation for rebuilding a powertrain, performing an engine swap, or carrying out professional upgrades to the drivetrain in an Audi S4 B7 generation. By maintaining the original design specifications, the BBK engine allows you to preserve the characteristic sound and throttle response typical of Audi's sports models.

Specifications and technical data

• SKU: 079100031D
• Mark: Audi
• Condition: Used
• OEM Part Number: 079100031D
• Substitutable numbers: 079100031D, 079 100 031 D, 079100031DX, 079 100 031 DX, 079100031AX, 079 100 031 AX
• Fuel type: Petrol
• Number of cylinders: 8
• Category: Engines
• Engine code: BBK
• Mileage: 99 000

Technical characteristics of the BBK engine

The presented engine block belongs to the Engines category and is designed for the petrol-powered V8 unit used in the Audi S4 B7 with Quattro all-wheel drive. The eight-cylinder architecture ensures high refinement, smooth power delivery, and stable torque output across the entire rev range. As a bare engine block, this component serves as the core of the powertrain – ideal for further assembly according to the requirements of a specific project or factory specifications.

Application in Audi S4 B7 4.2 FSI Quattro

The engine with the BBK code is factory-fitted to the sports version of the Audi S4 B7 generation, where it is responsible for dynamic acceleration and the characteristic, thoroughbred V8 sound. The use of FSI direct petrol injection combined with an eight-cylinder architecture allows for precise control over the combustion process, which translates into better throttle response and stable operation at higher RPMs. For workshops specializing in the Audi brand, such a block is a valuable base for professional engine rebuilding or for swap projects within the same platform.

Benefits of choosing a used engine block

A used BBK engine block is a solution that allows you to significantly reduce repair costs compared to purchasing a complete, new unit. Maintaining the original V8 design facilitates installation in the vehicle without the need for modifications to accessories, wiring harnesses, or control systems, provided you stay within the same generation and engine code. This type of base is particularly valued in situations where the existing block has suffered mechanical damage or requires a comprehensive replacement for operational reasons.

An additional advantage is the ability to individually select accessories, cylinder heads, intake, and exhaust systems, which allows you to tailor the final configuration to the user's expectations – from a faithful reconstruction of factory specifications to projects focused on increasing performance. Maintaining the original engine code also facilitates subsequent maintenance and the selection of spare parts according to the manufacturer's catalogs.

Professional selection and service aspects

When selecting a block for an Audi S4 B7, it is crucial to match the engine code and fuel type to ensure full compatibility with the existing control system, transmission, and Quattro drivetrain. In workshop practice, this means the ability to use existing accessories, which shortens repair time and reduces the risk of electronic integration issues. A used engine with a documented reference mileage also allows for better planning of further work – from basic service to a full overhaul according to the workshop's standards.

For specialists dealing with Audi V8 engine repairs, such a block is a convenient starting point for building an engine according to customer requirements – both in terms of durability and performance characteristics. The ability to inspect and prepare the unit before installation (e.g., measurements, machining, replacement of wear-and-tear parts) increases the safety of the entire investment and helps avoid unforeseen vehicle downtime.

Audi engines – expansion and additional information

If you are planning a comprehensive repair or upgrade of your Audi's engine area and need other components from the same group, such as blocks, cylinder heads, or crankshafts, check out the available parts in the Audi Engines category.

When making a decision to purchase a used engine block, it is worth relying on reliable technical data and real-world examples from workshop practice – this is discussed in detail in the article Why it is worth buying used gearboxes and engines – facts instead of myths, where you will find a discussion of selection procedures by OEM numbers, cost analysis, and answers to frequently asked questions.

For brand enthusiasts who care about preserving the characteristic Audi DNA, an additional source of knowledge may be the entry Audi and pure emotion. How do used parts help maintain the brand's DNA?, which shows how properly selected original components help maintain the consistency of the driving experience and build quality.