GMC K25 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.

Learn what throttle and kickdown cables do, how to install them, and tips for troubleshooting issues like broken or stuck cables.

This article guides you through the process of repairing and painting a subframe for a 1967 Poncho Firebird. See how the front suspension gets an overhaul including new G-comp spindles and a disc brake kit.

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.

Speedway Motors employee Tim M. decided to take us along as he takes another step in restoring a '32 Ford. This go-round he repairs an original '32 grille insert to put in his new shell.

Learn how to install spark plug wire terminal ends. Our step by step guide takes you through terminal end and boot installation with the use of a wire crimping tool.