Accel AC 428 Engine Parts

Learn about the functionality of key parts in a hot rod air conditioning system for install or diagnosing issues. We cover the condenser, compressor and more.

There is a lot to consider when choosing the proper spark plug for your engine's intended application and power level. Let us take some of the guesswork out with our spark plug buyer's guide.

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

Learn what goes into setting the fuel for your engine and how to change the density altitude, ADR, main pill and high speed pressure to optimize a/f ratio.

Whether you're trying to troubleshoot engine issues or want to get an idea what's going on inside that junkyard jewel that you just hauled home, a leak down test is a great way to ascertain the condition of an engine's cylinders without pulling it apart.

Learn all about what is a 602 crate motor and what it takes to run this small block Chevy in your race or street car.

Learn all about what is a 604 crate motor and what it takes to run this small block Chevy in your race or street car.

Classic cars ran on normal motor oils for decades, so why change now? The answer lies in the evolution of gasoline engines and how motor oil has co-evolved.

There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

In our quest to make everything on our cars better, we're constantly trying to clean things up under the hood. One quick way to get there is by smoothing the firewall. Here are a few ways to get that custom engine bay.