Stripped Bolts

[adecorzo]

Hey i started taking my engine apart but the bolts that hold the head on the block started to strip is there another way of taking them off?

 

[K2e2vin]

More than one are stripped? Also, is it stripped at the threads or the bolt head?

 

[adecorzo]

just 3 and its the head of the bolt not the threads my idiot friend used a drill to take them out instead of the bar breaker so 3 of them got messed up