International Engine Oil Change Kits

We help determine what are the best 10-spline quick change gear ratios for your street or racing needs

Quick change rears have been around since the 1940s and while many are familiar with them, to others they’re a mystery we’ll help explain

What is the best engine to swap? Discover the top engine swap options, including LS, Hemi, and Cummins, and find the best engine swap for your build.

The classic 350 small-block Chevy is beloved for its simplicity and strength. And yes, you can turbocharge it to unlock modern levels of horsepower. Turbocharging a SBC 350 can transform your vintage V8 into a streetable, tire-shredding monster..

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

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

Build a high-performance Gen V LT engine with proven power combos and learn about LT upgrades and tuning tips for maximum power

Crate Engine vs Rebuilt: Is Rebuilding an Engine Worth It? Crate engines are often the more affordable option over a purpose-built engine. Some still think a rebuild is cheaper than a crate engine. But is it? That’s what we’re here to find out.

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

Learn what gear oils do for your differential and how to choose the best gear lubricant for your application's needs