As the number of choices for new, factory V-8 muscle cars diminishes over time, smart hot-rodders are looking for new ways to improve upon the cars already built. If you long for the “old” days of the ...

Every diesel-head knows about Cummins engines — specifically, the six-cylinder Cummins 5.9-liter and 6.7-liter engines. But given how popular these engines are, we won't blame you if you didn't know ...