Studebaker Challenger 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.

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

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.

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

Learn how to install our new Deluxe LS Swap Fuel Filter/Regulator in five minutes for a cleaner look and fewer potential leak points!

Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Shifter Assembly.

Caster and camber are critical adjustments to your car's suspension alignment. It's important to understand what caster and camber are as well as how they can affect your car's performance.

Ever had brand new bolts or nuts bind up on you? Take a minute to read through the steps you should take anytime you’re building an engine or installing new hardware.