Harley-Davidson's Twin Cam 103 and Milwaukee Eight 107 engines have their similarities, but there are some important ...

Just the very ubiquity of the four-cylinder engine gives it a bad press ... The head meanwhile was a special twin-cam item related closely to the six-cylinder S38 of the original M5.

Affectionately called the Twin ... new V6 engines, a perfect addition to the automaker's lineup of new truck engines. The result is an 11.5-liter (702.4 cubic inches) V12 with four-cylinder ...