Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...

GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

After a decade away from street car competitions, five-time Drag Week winner Larry Larson is returning to the streets with ...

What Makes An Engine Better? Big Bore vs Long Stroke Bore and stroke cause differences in both power and efficiency. All ...

Sadly, Leyland Tractors was one of the marques that passed into history in the latter part of the last century, as consumer ...

Piston ring end gaps matter more than you think because they manage pressure and heat, preventing catastrophic failures ...