nissan vk56de

The VK engine is a V8 piston engine from Nissan. It is an aluminum DOHC 4-valve design.
The VK engine was originally based on Nissan's VQ V6 rather than the VH V8 used in previous Q45/Cima models. Changes include: a variable intake manifold, newly designed heads, and a larger drive by wire throttle chamber. The intake manifold directs air through different paths at different engine speeds to optimise low-end torque or high-end horsepower.
The 4,494 cc VK45DE was introduced in 2002 and is built in Yokohama, Japan. Bore and stroke is 93 mm × 82. 7 mm. Output is 340 hp at 6,400 rpm with 46 kg⋅m of torque at 4,000 rpm. Redline is at 6,600 rpm. It has an aluminum engine block and aluminum DOHC cylinder heads. It uses SFI, has four titanium valves per cylinder with Continuous Variable Valve Timing and features forged steel connecting rods, four one-piece cast camshafts, an unusual variable-flow induction system optimizes airflow for low- and high-speed operation, low-friction molybdenum-coated pistons, and a microfinished forged crankshaft....