Starting with a seasoned four-bolt-main GM block, the bores were honed out and a 3.76-inch GM crank was added for a total displacement of 427-inches. Rounding out the rotating kit was a set of forged ...

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 ...

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 ...

What happened to the big power numbers of the 454? The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. The Vortec big-block was gifted with a sequential ...