In the 1980s General Motors shifted away from small holes in the cylinder head and pushrod guide plates instead to what they refer to as “guided” rocker arms. These stamped rocker arms use two small ...

The most enduring engine in automotive history is about to change. The small-block Chevy is and will continue to be the most popular powerplant in the history of racing and high performance, but its ...

Honest-to-goodness aluminum heads for the small-block Chevy? For years you've probably heard rumors about these mysterious super-trick heads. You may even have seen some of the very rare aluminum ...