Ever wondered what people are talking about when they say "dual overhead cam"? Don't worry, because we're here to explain it ...

Nothing determines the "personality" of an engine more than the camshaft. Think of the cam as a mechanical computer, calling the shots on when and how the valves open and close. That computer is ...

This diagram shows the major cam events through one full cylinder cycle (two crank revolutions or 720 degrees), beginning at TDC firing. The exhaust lobe and valvetrain is closer to the front, and ...

From Alfa Romeo's stiletto-heel elegant Tonale SUV to the Giulia GTA so stylish it let each customer design their own racing livery, the Milan automaker has a rich history of building beautiful ...

It's been all the talk on internet forums, club meeting hangouts, and in enthusiast garages across the nation—the loss of zinc and other protective "barrier" chemicals in modern oil damaging ...

Allyn started writing for TopSpeed in 2015, but has been writing on motorcycle and automotive topics since 2008 for outlets such as eHow, USAToday, and subsidiaries of MotorTrend. Formally trained as ...

Ed note: Last year, we connected with the SOHC Honda master, Bisi Ezerioha for the Castrol Syntec Top Shop Challenge in the hopes of bringing the most unique engine setup to the table. Being one of ...