From Pushrods to Precision: The Evolution of Engine Valvetrains
When people talk about cars, conversations often revolve around engine size, horsepower, torque, turbochargers, fuel economy and cylinders. But beneath all of those specifications is a mechanical system that determines how efficiently an engine can breathe: the valvetrain. You may have seen terms such as OHV, SOHC and DOHC on vehicle specifications and wondered what […]