4.4L N63 N63B44 V8 Engine Assembly for BMW 550i 650i 750i X5 xDrive50i X6 xDrive50i 760Li

Elite Technical Specifications and Flagship Applications

TheFuchuan BMW N63 Engine Assembly is an all-aluminum 90-degree V8 unit that integrates BMW’s most sophisticated induction and fueling systems. This engine was designed to deliver massive torque from the very bottom of the RPM range. Key technical data include:

• Displacement: 4,395 cc (4.4L)

• Bore x Stroke: 89.0 mm × 88.3 mm

• Compression Ratio: 10.0:1 (Varies slightly by TU version)

• Power Output: Approx. 300–390 kW (402–523 hp) @ 5500–6000 rpm

• Torque: 600–750 Nm @ 1800–4500 rpm

Whether you are sourcing for a 550i (F10/G30),750i (F01/G11),X5 xDrive50i (E70/F15/G05), or X6 xDrive50i (E71/F16/G06), the Fuchuan BMW N63 Engine Assembly is the definitive replacement for high-value vehicle restoration.

Innovative"Hot-V"Engineering and Performance Refinement

The core distinction of the Fuchuan BMW N63 Engine Assembly is its revolutionary architecture. By positioning the twin-scroll turbochargers and catalytic converters between the cylinder banks, the engine achieves significantly shorter intake and exhaust paths. Our manufacturing process emphasizes the high-grade aluminum-silicon alloy (Alusil) block and the use of a forged steel crankshaft to manage the immense pressure of the V8 configuration. The Fuchuan BMW N63 Engine Assembly also features the latest Double-VANOS and Valvetronic systems, ensuring that power delivery is as smooth as it is potent. This material choice and design focus guarantee superior thermal efficiency and the characteristic V8 growl that elite customers demand.

Comprehensive Quality Validation and Thermal Management Testing

To safeguard the interests of our global B2B partners, every Fuchuan BMW N63 Engine Assembly undergoes a rigorous multi-stage quality validation protocol. Given the high-heat environment of the N63’s turbos, each unit is subjected to an exhaustive hot-run test. During this verification, our engineers monitor high-pressure fuel rail stability, cooling system efficiency, and the precise calibration of the turbo wastegates at peak operational temperatures. We also perform a 100% electronic diagnostic scan to ensure the complex sensor network is fully operational. This commitment to quality ensures that each Fuchuan BMW N63 Engine Assembly arrives at your warehouse in peak condition, backed by our professional 12-month factory warranty.

Scalable B2B Logistics and Global Wholesale Solutions

Guangzhou Fuchuan is more than just a manufacturer; we are a strategic partner for the prestige engine trade. We maintain a dedicated inventory of the Fuchuan BMW N63 Engine Assembly to facilitate the rapid fulfillment of bulk orders. Due to the precision and significant value of this V8 unit, each Fuchuan BMW N63 Engine Assembly is treated with industrial-grade anti-oxidation spray and secured in heavy-duty, extra-reinforced export-standard plywood crates to prevent transit damage. With our 24/7 technical support and deep expertise in international shipping, we make the process of importing the Fuchuan BMW N63 Engine Assembly seamless and highly profitable for luxury-focused wholesalers worldwide.