A stock LS3 rec-port intake manifold is hard to beat and only costs $299. When Chevy went back to the drawing board after the success of the cathedral-port Gen III LS1 small-block V-8, it realized ...

The LS3’s blend of power, reliability, and aftermarket support makes it a favorite for both swaps and performance builds. From basic bolt-ons to full Stage 3 transformations, success comes from ...

GM's highly-regarded LS3 is one of the company's most celebrated small-block V8 engines. It burst onto the scene in 2008 as the evolution of GM's "Gen IV" LS family and its immediate predecessor, the ...

Back in part one of our new GMPP LS3 testing ("Late Crate Update," Oct. '10), we subjected a factory-fresh LS3 crate motor from GM Performance parts to a series of performance upgrades, including a ...