Engine Valve Covers and Accessories

Learn the differences between H-beam vs I-beam rods, including strength, weight, and more to choose the best connecting rods for your engine.

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

An LS cam swap can yield big power gains. And, you can do it at home. Here's how...

Aluminum vs. cast iron heads—what’s better for your build? We break down power, weight, heat, and cost to help you choose the right cylinder heads.

Lifter tick vs rod knock—what's the difference? Learn how to identify these engine noises, their causes, potential damage, and how to fix them.

Comparing GM’s LS V8 engine to the high-tech LT V8 engine. Which is better for your performance needs and budget?

Learn how to choose the right valve springs for your camshaft, the differences between single and dual valve springs and when to replace them.

Are you considering a Toyota 2JZ swap? Learn all about the famed inline-six and what cars came with the 2JZ engine from the factory.

Learn how to properly mockup a 2JZ swap with Toyota's legendary engine using our guide to mounts, turbos, and essential components

While everyone is looking for a 6.0 LS, don’t count out the original 5.7 LS1 engine for your next LS swap performance build