how to remove a really tight head bolt

[aznbmxxxer]

i tried to take off the head, and i got all of them but 1 head bolt loose. i broke 4 sockets and its not even budging. its starting to get rounded. the motor was in a accident and my friend said that i should replace the head gasket. should i keep trying to take off the head, or should i just use it. in the accident the radiator was smashed in and it slammed on the passenger side into a wall. waht are the chances that the head gasket it broken?

[whtteg]

slim to none that the head gasket was damaged in the accident but now that you have untorqued the bolts you need to replace it. Try using a 1/2" drive impact (the black ones) socket with a 1/2" drive breaker bar, if that does not do it then get a piece of pipe and use that on the breaker bar fpor extra leverage. It should do the trick.

[liquidflame8]

get your friend to take it off since he told you that it was messed up, and now u surely messed it up because he probably doesn't know what the hell he's talking about.