Ask any professional racer or engine builder and you'll hear that cylinder-head airflow is the most important factor in achieving the greatest peak horsepower from any engine. For years Pontiac racers ...

When the 30-year evolution of the late-model Mustang hobby is assessed solely from a bolt-on-parts perspective, there is no arguing that a lot of progress has been made over the course of those three ...

Ferrari was so proud of its five-valve cylinder heads, it changed a naming convention that ran back over 25 years. For its previous mid-engine two-seaters, the three-digit name was derived from ...

"After many years of involvement with the early automobile manufacturers, Harry Weslake founded Weslake and Company in 1934 to act as consultants to the makers of internal combustion engines. Over the ...