When you think of a large engine, you probably think of a heavy-duty truck V8. But the engines that actually power our world are bigger than your house.

There was a time in automotive history when 'replacement for displacement' hadn't been invented yet. Sure, you could extract more horsepower with performance camshafts, better (and more) carburetors, ...

A Pratt & Whitney R-4360-4 Wasp Major exhibited at the Air Zoo at Kalamazoo/Battle Creek International Airport. - Michael Barera/Wikimedia Commons Think your V8 is big? Think again, because the ...