1978 GMC K25 Headlight Switches

Check out this headlight wiring and taillight wiring diagram.

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

An overview on swapping turbo mufflers for chamber mufflers on a 1969 C/10 pickup. See how to extend the muffler length using exhaust pipe.

A guide to choosing the right camshaft for your engine. See how to install a new LSR roller camshaft while upgrading valve springs and rocker trunnions.