{TAIL ~ Cylinder head} 15 also houses intake and exhaust valves 8 which allow fuel mixture to enter and exhaust gases to exit {HEAD ~ combustion chamber} 19 
{ TAIL ~ Cylinder head } 15 also houses intake and exhaust valves 8 which allow fuel mixture to enter and exhaust gases to exit { HEAD ~ combustion chamber } 19
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH