Among the advantages of these engines are factory aluminum heads, lightweight composite intakes and in some cases aluminum blocks. Many, such as the 5.3L (RPO LM7) have a cast-iron block with aluminum ...

When a car is being upgraded in terms of horsepower and fuel efficiency, exhaust upgrades tend to be near the top of many ...

The Vortec 5.3L V8 LMG was an engine produced by General Motors for full-size SUVs. Displacing 5.3 liters in a V8 configuration, the LMG was part of the Vortec (Generation IV Small Block) engine ...

Though the 2016 Chevrolet Silverado already broke cover a few months ago, the truck's official public debut means that Chevy has unloaded further details on the pickup's powertrain and technology ...

When GM debuted the all-new full-size Chevrolet Silverado and GMC Sierra pickups late last year, it outlined a bevy of changes and updates—everything, that is, except power figures for the trucks’ ...