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Discussion Starter #1
Growing up on Chevy V8's and knowing almost nada about Nissan's history with V8's; I started googling tonight, looking for some exploded views, or diagrams of the 5.6L V8 with no luck. However, I found some interesting stuff on the VK56DE engine that I wasn't aware of: Aluminum block, (I thought only the heads,) 32 Titanium valves, Aluminum lifters, Molybdenum coated pistons. Word. Claims 317hp is rated using 87oct, and simply using high test saw 320hp.

http://en.wikipedia.org/wiki/Nissan_vk_engine

Best of all: Made in Decherd, Tennessee....about 75 miles from where my Titan sleeps every night.

Anyone know of any good articles, diagrams or other info on the 5.6L?

Wiki Titan article for some more interesting info, that y'all probably already know. http://en.wikipedia.org/wiki/Nissan_Titan

The VK engine (formerly known as the ZH) is a V8 piston engine from Nissan. It is an aluminum DOHC 4-valve design with variable valve timing. The timing of the intake valves is continuously fine-tuned to ensure air enters the cylinder at exactly the right moment for optimum combustion. It also features a variable intake system and an optional direct injection fuel system.

The VK is based on Nissan's VQ V6 rather than the VH V8 used in previous Q45/Cima models. Changes include titanium valves and aluminium lifters, which being lighter than equivalent steel items allow the engine to respond more quickly and more quietly. The intake manifold directs air through different paths at different engine speeds to boost low-end torque or unleash high-end horsepower.

The VK56DE is a 5.6 L (5552 cc) version built in Decherd, TN. Bore is 98 mm and stroke is 92 mm. Output is 305 hp (227 kW) at 4900 RPM with 375 to 390 ft.lbf (509-522 Nm) of torque at 3600 RPM. It has aluminum-alloy block and heads and low-friction molybdenum-coated pistons. The valvetrain is a dual overhead cam (DOHC). It has 4 valves per cylinder with microfinished camshafts and cast-iron cylinder liners for increased durability.
 

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It seems that the Japanese brands have created more American jobs than the American brands.
 

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Discussion Starter #5
Thanks MuskyHunter, that was just what I was looking for. I tried searching the forum, but couldn't pull what I wanted from the results.
 

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Optional Direct Injection??? :)
 

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I worked for largest Tier-1 supplier till about 6 months ago. My job was to look for new suppliers and develop them. I primarily worked on GM and DC (Chrysler)programs. One of the first requirements that came from GM was you don't have to buy and make the stuff here in US, use Low Cost countries and we did so.
But now what is happening is Japanese automotive companies brought in their suppliers in US and they buy and make here. And since japanese market share is increasing they are actually competitive with the Low cost countries. I can say that what all the big suppliers (Delphi, Visteon, Bosch, Magneti Morelli, Arvin Meritor, well they all buy from same people- they do not supply much to japanese OEM). Not to divert the thread in different direction but I thought I should share the information.
 

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Maybe I'm a little slow on this one, but this is the first I've heard the the Titan engine has Ti valves...What aluminum lifters? We have direct action valves, there's no lifter...just a "shim bucket"
 
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