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