Two engine families, one endless argument that still splits car shows down the middle.

Back in the early 1990s the Gen II LT1 and LT4 engines powered GM's hottest performance cars, but GM read the tea leaves and knew that this platform would not be able to get them where they would ...

The GM LS1 and LS2 are the successors of Chevy's small block V8 engine. While they share a lot in common, there are some small but significant differences.

LS1 engine design highlights and basic specs, why it’s such a popular swap, and a basic timeline, from the C5 Corvette to its use in the Australian HSV heroes. The General Motors 5.7 LS1 engine was a ...

There seems to be no upper limit to the capability of GM's versatile LS V-8 small-block engine family, both in terms of horsepower output and displacement. Throughout the 1960s, the distinction ...

GM's LS engine is a powerhouse, thanks to great-flowing heads that enable tremendous horsepower and high-rpm performance. But while the LS is becoming a more popular swap choice for earlier, pre-C5 ...

In previous issues we talked about the GM 5.3 engines and how they are abundantly available. Recently, we have been hearing more talk about the smaller version of the LS family known as the 4.8. Now ...

GM’s Chevrolet LS engines redefined the pushrod V8 to give us one of the most dominant performance platforms of the modern era. What we refer to today as the LS family of engines usually refers to the ...

Turbos and superchargers have made extra power almost easy to come by. Thanks to them, even tiny four-cylinders can make the type of numbers that used to be reserved for big-displacement engines. That ...