Doing a job for a nice guy. Oil leaks cause me to remove the heads and barrels. After a clean up I find one barrel worn out and way over size tolerance. The others are OK, pistons good too, Ring gaps about 3mm!...So I need one good cylinder, worse is the fact that two heads have detonation damage. It looks as though the seats could fall out. So has anybody got a cylinder and a couple of heads for a solid lifter engine?....Got to be within wear limits. 3/8" thru' bolts. Anybody? Have a look at the pics and what do you think? Maybe I'm overthinking the heads.