GMC Fittings and Hose Parts

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.

Hose & Fitting

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.

Dick from Koul Tools shares a tip on how to properly seat the AN fittings using the Koul Tools device.

Keep your rear cylinders running cool in a high performance engine by installing a water bypass kit to the intake manifold.

What fittings should you use with your brake or fuel system? What does AN and NPT stand for? All of these questions plus more will be answered in Speedway Motors' latest article about fasteners!

See how a 1969 Chevelle gets an upgraded grille! Learn the pros of using the Dynacorn trim and extensions and some helpful tips for a successful install.

Learn some helpful tips for using your tire groover as well as what direction to cut your grooves and sipes for maximum side bite and forward bite on your dirt circle track race car.

Piston rings may not be the most exciting part of an engine build, but knowing how to clock piston rings and how to install rings on a piston is critical to your engine performing properly.

Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide. Ensure you are getting the best performance out of your ignition system.