{HEAD ~ Cylinder head} 15 has a lower wall 16 seated on {TAIL ~ block upper wall} 13 with a standard engine headgasket 9 located therebetween 
{ HEAD ~ Cylinder head } 15 has a lower wall 16 seated on { TAIL ~ block upper wall } 13 with a standard engine headgasket 9 located therebetween
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH