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 ...

Although Vortec engines fall under the "LS" branding, they aren't actually the exact same as more traditional LS engines made by General Motors.

Long before the Silverado 2500 entered the scene, three-quarter-ton Chevrolet pickup trucks came in the guise of the C20 and K20. Currently listed on Bring a Trailer with a high bid of $12,000 and ...

The GM 5.7L L31 V-8 was based on the original GM small-block, which was first offered in 1955. The truth is that many people are convinced that the LS engines are a better swap, although in most cases ...