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BMW N63 4.4L Engine
BMW N63 4.4L Engine
BMW N63 4.4L Engine
BMW N63 4.4L Engine
BMW N63 4.4L Engine
  1. BMW N63 4.4L Engine
  2. BMW N63 4.4L Engine
  3. BMW N63 4.4L Engine
  4. BMW N63 4.4L Engine
  5. BMW N63 4.4L Engine

N63 Engine for BMW X5, X6, 550i, 650i, 750i, 750Li xDrive (N63B44A 4.4L)

The BMW N63 is a 4.4-liter twin-turbocharged V8 engine, renowned as the world’s first mass-produced engine to feature a “Hot-V” layout. Since entering production in 2008, this engine series has seen the release of multiple versions, offering power outputs ranging from 402 to 523 horsepower and torque ranging from 443 to 553 pound-feet.

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Description

General Specifications
Engine Type: 90° V8, Twin-Turbocharged
Displacement: 4,395 cm³ (4.4 L)
Bore: 89 mm
Stroke: 88.3 mm
Block/Head Material: Aluminum-Silicon Alloy (Alusil)
Valve Train: DOHC, featuring Double VANOS and Valvetronic (Variable Valve Lift)
Compression Ratio: 10.0:1 to 10.5:1 (depending on generation)
Fuel Type: Premium Unleaded Gasoline

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