The new crate engines leverage the expertise of GM's LS engine program, but take it to the next level with race-caliber components.

The thing that made the LS so great was its versatility, while the LT brings incredible power and technological marvels to the table.

General Motors' LS engine is extremely popular, and that also applies to the 6.2-liter version. What do the owners and mechanics say? Is it good?

Project Groundhog, Part 1: Cleaning up and machining rusty parts from a 2005-era Chevy truck engine that was literally pulled out of a dirt floor.

Tech Editor Verne Simons saw this beefed-up, well-built 1998 XJ with a 2001 LS1 5.7-liter V-8 and more at King of the Hammers 2022.

If you're looking to engine swap your car, your best bet is often a small block V8 from General Motors. The LS and LT engine families are pretty different.