GM offers two crate engines for circle-track racing, the 602 and the 604. With such similar names, though, you may wonder how they differ. Here's the lowdown.

Crate engines provide an excellent alternative to rebuilding a stock engine or purchasing a remanufactured long block to renew the HEMI power plant in your Mopar or swap it into your project vehicle.

As car enthusiasts, we often believe that cars are more than just machines — that they carry a soul and even a part of us inside. We often draw parallels between a car's engine and the human heart, ...