The LS3 crate engine has earned a reputation as one of Chevrolet's most trusted and versatile powerplants. Churning out 430 hp at 5,900 rpm, in addition to 425 lb-ft of torque, which arrives at 4,600 ...

What is the best bang-for-buck V-8 crate engine you can buy in 2024? The correct answer is Chevy's tried and true swap platform, the “Gen IV” 6.2-liter LS3 V-8 engine. Why the LS3 when there are ...

The engine crate market is not for the faint-hearted. It's a place where enthusiasm, power, and mechanical complexity all converge to allow car geeks to turn an empty engine bay into something special ...

The GM small block has been the gold standard for quality American V8 engine design for 70 years at this point. GM small block engines have seen 13 U.S. presidents serve office, and has been a pillar ...

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 ...

Enthusiasts who hold originality in high regard are fully aware that it's extremely hard to keep a decades-old engine running just so. Tuning the carburetor(s) and changing the spark plugs of a ...

Starting with an increase in displacement, the LS3 checks in at 6.2 liters (376 ci) versus the previous 6.0L LS2 combination. This comes courtesy of an increase in bore from 4.00 inches (in the LS2) ...

Seeing the light at the end of the tunnel is one of the best parts of any build. Knowing you're close to finishing a significant upgrade or restoration can be insanely gratifying and we are happy to ...