Keeping older vehicles running is more popular now than at perhaps any time in recent history. New hardware, wiring harnesses, ECUs, turnkey crate engines, and accessories make 4x4 repowering easier ...

Tick. Tick. Tick. That's the sound our Ford 4.0-liter, over-head valve (OHV) engine was making in our 1991 Ford Explorer after 250,000 miles. The Ford 4.0L V-6 engines, built in Germany, are found in ...

Face it: GM Gen III/IV small-blocks, Ford Modular motors, and new Chrysler Hemis have rejuvenated production cars, and now they're poised to revolutionize hot-rodding. Overhead cams, forced induction, ...