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Nissan VK56 engine for sale
$1,200.00 – $2,800.00
A 5.6L V8 engine called the Nissan VK56DE was introduced in 2004. It actually has a design that is very similar to the smaller V6 VQ35DE. The Nissan Titan, Pathfinder, Armada, and Infiniti QX56 models are among those that use Nissan 5.6L engines the most frequently. The VK56DE is a capable performer with between 305 and 320 horsepower. It also provides a decent blend of durability and dependability. The 5.6 V8 isn’t flawless, like with all other engines, though. In this article, we go through a few typical Nissan VK56DE engine issues as well as general reliability.
Nissan makes the VK56 engine, which was originally known as the ZH engine. It has four aluminum DOHC valves.
Instead of the VH V8 used in earlier Q45/Cima models, Nissan’s VQ V6 was originally the model upon which the VK engine was built. A variable intake manifold, newly created heads, and a larger drive by wire throttle chamber are among the modifications. The intake manifold optimizes low-end torque or high-end horsepower by directing air through various routes at various engine speeds.
A 5,552 cc (5.6 L; 338.8 cu in) variation called the VK56 engine is produced in Decherd, Tennessee. It has a 98 mm x 92 mm (3.9 in x 3.6 in) bore and stroke. The engine produces 522-533 Nm (385-393 lb-ft) of torque at 3,600 rpm and 317-320 horsepower (236-239 kW; 321-324 PS) at 4,900 rpm. Its pistons have a low-friction molybdenum coating, while its heads and block are composed of an aluminum alloy. The intake valves of the dual overhead cam (DOHC) engine have a continuously variable valve timing control system (CVTCS). For added durability, it also incorporates ductile iron cylinder liners, four valves per cylinder, and micro-finished camshafts.
Engine Nissan VK56DE / VK56VD
Between 2003 and 2015, US factories produced the 5.6-liter V8 Nissan VK56DE engine, which was used in the largest and most potent cars, including the Armada, Titan, and Infiniti QX56. Due to a significant upgrade in 2007, this device currently has two distinct generations.
2003 saw the release of the VK45DE’s initial iteration. Two DOHC heads without hydraulic lifters, an electronic throttle, a timing chain drive, and a multiport fuel injection system are all features of this engine’s construction. Along with these features, it also boasts an aluminum block with cast iron liners and a 90° camber angle. As part of the 2007 update, CVTCS phase shifters were installed on the unit’s intake camshafts.
The largest and most potent vehicles, such as the Armada, Patrol, and several Infiniti, are equipped with the 5.6-liter V8 Nissan VK56 engine, which has been produced at the Yokohama factory since 2010. Such a unit comes in two separate variations: for SUVs and for sports sedans.
The well-known VK56 engine was replaced at the very end of 2009 by a new power plant that stands out for its direct injection systems and variable valve lifts of the VVEL type. In addition, it has a timing chain, a patented CVTCS variable valve timing system, but only on the intake shafts, an aluminum cylinder block and cast-iron liners, two aluminum DOHC heads without hydraulic lifters, and a V8 gasoline engine.
Separately, the variant of this engine used in the Infiniti M56 and Q70 sports sedans merits discussion. It is distinguished by a unique cylinder block, CVTCS phase shifters on all camshafts, a higher compression ratio from 10.8 to 11.5 psi, and the presence of oil nozzles for cooling pistons.
The VK45 and VK50VE internal combustion engines are also members of the VK family. VK56 engine
On what the VK56 engine was mounted:
Nissan Armada 1 (WA60) from 2003 to 2015; Nissan Armada 2 (Y62) from 2016 to…; Nissan Patrol 6 (Y62) from 2010 to…; Nissan Pathfinder 3 (R51) from 2007 to 2012; Nissan Titan 1 (A60) from 2003 to 2015; Nissan Titan 2 (A61) from 2015 -…; Infiniti QX56 1 (JA60) from 2004 to 2010; Infiniti QX56 2 (Z62) from, VK56 engine
Disadvantages of the VK56 engine
The most well-known issue with this unit is the scuffing that develops in the cylinders as a result of the catalyst’s crumbs getting inside of them and being destroyed by poor fuel. The emergence of a diesel sound during engine running and increased oil consumption are symptoms.
Timing chains stand out in this engine due to their low resource usage; frequently, they have already traveled 100–150 thousand kilometers, which is reflected in their unstable and noisy operation. VK56 engine
We encourage you to keep a close eye on the engine cooling system because it can quickly overheat and cause a gasket to fail or the cylinder head to explode. The presence of the fan’s less-than-reliable viscous coupling exacerbates this issue. VK56 engine
They frequently complain about the difficulty starting the engine in cold weather, lambda probes that are sensitive to the quality of the fuel, and an unreliable fuel pump in specialized forums. As there are no hydraulic lifters present, remember to adjust the valve clearance as well.
Disadvantages of the VK56 engine
The most well-known issue with this type of engine is the development of scoring in the cylinders, which is followed by oil burn and the emergence of a diesel sound. A collapsing catalyst or wear items from the injection pump pusher, along with the bending of the liners as a result of overheating, are the causes of the problem. Even a revocable firm was set up on the American market to swap out these motors.
Timing chains frequently stretch at less than 100,000 kilometers, and in some markets there is a recall firm to replace them even after warranty.
The high-pressure fuel pump pusher quickly wears out as a result of the usage of low-quality fuel, and its worn components might enter the cylinders through the oil system. VK56 engine
Your unit’s cooling system needs to be regularly monitored because it is prone to overheating, which can cause the liners to flex and develop scuffs.
This engine frequently experiences injector seat problems on runs of 200–250 thousand kilometers, as well as malfunctions with the VVEL valve lift system. VK56 engine
| QUALITY | 20000km, 45000km, 80000km |
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