A complete guide to the history of the LS and Vortec engine brands, the differences between them, and their components. Back in the early 1990s the Gen II LT1 and LT4 engines powered GM's hottest ...

See the strangest, coolest, and most creative LS engine swaps from the 2026 Holley LS Fest West in Las Vegas, where “LS Swap ...

The General Motors 5.7 LS1 engine was a naturally aspirated small-block V8 engine with two valves per cylinder and the traditional pushrod valve gear and two valves per cylinder, a layout that has ...

General Motors' LS crate engine is a series of popular V8 engines (and recently V6 engines) that punch well above their weight class. While these motors are small, they can deliver far more ...

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 ...

Before LS swaps ruled the hot rod scene, there was one V8 that powered just about everything on wheels: the 350 Small Block Chevy. Born in the muscle car wars of the '60s, it was compact, powerful, ...

Will joined the TopSpeed team over two and a half years ago, bringing his lifelong automotive passion, writing experience, and editorial expertise along with him. Whether classic or modern, American ...