From its 1965 introduction to its production supersession by the improved Mark V engine in 1991, the big-block Chevy Rat has carved its mark in virtually every form of racing, becoming in the process ...

Unlike most of its competitors, the Chevrolet Mark IV Rat motor was designed from the beginning to be a high-performance race engine, with the initial Daytona "Mystery Motor" configuration merely ...

If you could not agree more with the "no replacement for displacement" motto, Chevrolet has made a crate motor that you will appreciate. We are referring to GM's latest crate motor offering, called ...

The Ford and Chevy 427 big blocks sit at the center of one of performance history’s fiercest rivalries, yet the two engines followed very different paths from the dyno cell to the winner’s circle. I ...