{TAIL ~ An engine assembly} may include an engine structure and {HEAD ~ a camshaft} supported on the engine structure 
{ TAIL ~ An engine assembly } may include an engine structure and { HEAD ~ a camshaft } supported on the engine structure
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH