Peanut port heads were first introduced in the late 1950s by Edelbrock, an American automotive performance company. As a result of their design and construction, these cylinder heads allowed for increased airflow and improved combustion efficiency, making them popular among car enthusiasts looking to get more power out of their engines. The advantages offered by peanut ports made them popular with drag racers who needed superior power output from their cars to compete in races. Over time, as technology advanced and engine designs changed, so did Edelbrock's peanut port head design; however its basic principles remained unchanged since its introduction over 50 years ago. Today’s modern versions are still used by drag racers and car enthusiasts alike due to their ability to provide increased horsepower without sacrificing reliability or durability.