Project Groundhog, Part 2: Buttoning things up with the installation of heads, valvetrain, and intake on our rescued 2005-era Chevy LS truck engine.

Check it out as we fix up the fuel and spark system on our 5.3 LS engine that we got at Dave's Goldenwest Auto Wrecking with some parts from Lokar, Milodon, Holley/Weiand, ARP, Professional ...

Stock Junkyard LS. Richard Holdener Holdener took a stock, flat-top 5.3-liter LS and put it on an engine dyno to find a baseline power rating.

The Vortec engine brought a modernized version of the legendary Chevy small-block V8 to GM trucks and SUVs. Here's how to get the best and avoid the worst.

Find information about GM's 5.3L V8 LS4 engine used in the Chevrolet Caprice PPV, including detailed info and specifications, vehicle applications, and more.