http://www.engineeringcareeroptions.com/howtobecomeamechanicalengineer.php has a guide on everything pertinent for aspiring mechanical engineers.
How Do Two-Stroke Engines Work?
Mazda rotor race engine
That's not a Jaguar engine, that's a work of art!
Supermarine Spitfire engine - Rolls Royce Merlin
bigengine.jpg 500×500 pixels
ford cosworth , I want one in my Dacia !!
Duesenberg Straight 8 Engine, seriously impressive for their day!
Jaguar XK engine 1948-1987.Pistonheads
Alfa Romeo 3.5 L V10 Engine