Learn how to use Koul Tools for your AN Hose Assembly with our video guide. Koul Tools make it easy to install a braided rubber hose into the AN fitting socket.

Learn how to repair an oil line leak using steel braided hose and AN fittings. See how to cut the hose, measure angles, apply fittings and install fuel lines back into your car.

AN fittings are a simple and effective way to plumb fluid systems in your car. This AN fittings install guide answers some of the more common questions pertaining to AN fittings and AN line.

Trying to decide if you want to change to fuel injection in your car? The simplicity of EFI conversions are leaps & bounds from where they were a few years ago. Kevin explains how to choose an EFI setup and walks through the installation process.

This handy adapter is an inexpensive way to adapt an LS into your classic, muscle car, or truck. It takes care of the steam line as well as the hose diameter difference, allowing you to run a standard radiator with your LS swap.

A detailed explanation of how Speedway Motors small block fuel pump works and a guide for how to replace and install the mounting gasket.

Hose & Fitting

The process of changing out a mechanical fuel pump in a 1957 Bel Air and some helpful tips while doing so.

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

Custom rides usually require custom brake and fuel lines. Educate yourself on the tools you will need and the proper steps to a successful line assembly in our buyer's guide.