Chevy LS Short Block Engines

A strong LS short block is the foundation for any LS engine project, whether you’re building up a high-horsepower 6.0 liter short block for an LS swap, or just putting together a reliable LS1 for your work truck. And with dozens of LS short block options available from Summit Racing, you’re able to find the right LS short block for your application.

Available in popular displacements, including 5.3, 5.7, 6.0, 6.7 and 7.0 liters, there are plenty of Chevy LS short blocks to choose from, which means you’ll be able to build your own equivalent to popular LS engines like the potent LS2 and LS3, the granddaddy LS1, and even the fire-breathing 427 LS7.

What is a short block? While there may be some variances between the different crate engine manufacturers, a short block typically means the package includes the engine block and rotating assembly (crankshaft, pistons, rods, etc.). In other words, any of the LS short blocks you see here would be an excellent starting point for your LS engine build. You add your own cylinder heads, intake, ignition, and everything else—all tailored to your specific engine goals.

Check out all of your LS short block options here, and then find the one that best suits the LS engine project you’ve got in your driveway. Start shopping now, at Summit Racing.