What's the biggest difference between General Motors' 5.3-liter and 6.2-liter V8s? 0.9 liters. Goodnight! Alright, 5.3s and 6.2s contrast more than that, and quite a bit, too. There's plenty to ...

The LM7 is one of those fly-under-the-radar performance engines. We've seen tuners get four-figure horsepower ratings out of this motor, but to most drivers this is the 295-hp motor found in Chevy ...

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 ...

With all the hype about the Gen III LS1 and 6.0L engines, a little 5.3L engine has appeared in well over a million GM trucks since 1998 that's been overlooked in the rush to make horsepower. This ...