The engine is oriented with its crankshaft vertically extending, such that the engine has a top and {TAIL ~ a bottom}, a first end and a second end, and a side between {HEAD ~ the ends} 
The engine is oriented with its crankshaft vertically extending , such that the engine has a top and { TAIL ~ a bottom } , a first end and a second end , and a side between { HEAD ~ the ends }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD