It allows linear delivery of torque, with near-peak levels over a broad rpm range, and high specific output (horsepower per liter of displacement) without sacrificing overall engine response, or driveability.

We would love for you to enjoy our content, weve worked hard on providing it.

Please whitelist our site in your adblocker, refresh the page, and enjoy.

It is part of GMs third-generation high-feature V6 engine family, and has been succeeded by the LGX.

It now uses new, lighter-weight components and enhancements designed to improve performance, efficiency, and durability.

This aluminum-intensive construction means less weight and greater efficiency than conventional cast-iron engines and less weight translates to improved vehicle fuel economy.

The sand-mold-cast block features strong cast-in iron bore liners, six-bolt main caps, and inter-bay breather vents.

A cast aluminum oil pan is stiffened to improve powertrain rigidity and reduce vehicle vibration.

The V6 VVT engine family was developed with pressure-actuated oil squirters in all applications.

The jets reduce piston temperature, which in turn allows the engine to produce more power without reducing long-term durability.

Larger-diameter intake valves are used in the heads and work in conjunction with new, longer-duration intake camshafts to provide the engines boost in horsepower.

By using larger valves and holding them open longer, more of the air is pulled into the combustion chamber, for a more powerful combustion.

The exhaust manifold is incorporated with the cylinder head, which saves weight, reduces complexity and helps promote a quicker light off of the catalytic converter, which further helps reduce emissions.

It fosters a more complete burn of the fuel in the air-fuel mixture, and it operates at a lower temperature than conventional port injection.

That allows the mixture to be leaner (less fuel and more air), so less fuel is required to produce the equivalent horsepower of a conventional, port injection fuel system.

Direct injection also delivers reduced emissions, particularly cold-start emissions, which are cut by about 25 percent.

Ethanol is renewable and produces fewer greenhouse gas emissions in the combustion process.

It can be produced from various feed stocks, including corn and wheat stalks, forestry and agricultural waste and even municipal waste.

The engine incorporates a timing chain with an inverted tooth design.

These smaller links engage at a lower impact speed, which decreases the noise generated.

In conjunction with the smaller pitch chain, the number of teeth on the sprockets are increased, which increases the meshing frequency and further reduces noise and vibration.

Four valves per cylinder and a silent chain valvetrain contribute to both smoothness and high output.

Four-cam phasing changes the timing of valve operation as operating conditions such as rpm and engine load vary.

Gm 3400 V6 Crate Engine