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 ...

It can be safely said GM's all-new LS1 opened the door to a new world of technology and performance in the 1990s. It can also be accurately stated the LS family is easily the most successful V-8 in ...

An LS swap can transform your classic or project car into a high-performance machine, but success comes from more than just dropping in the engine. From choosing the right variant to upgrading cooling ...

The LS engine, originally designed for General Motors’ vehicles in the late 1990s, has transcended its initial purpose to become the most popular swapped powerplant in automotive history. Its ...

While some Gen IV engines do use cathedral port cylinder heads, pretty much all are of the later, LS6 design. By 2009, cathedral port use was mostly restricted to just the 5.3L engines while all but ...

Engine shopping can be tough if you're looking through a list of them that all have similar names. A question you might ask yourself is what's the difference between General Motor's LS1 and LSX ...

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 ...