I have a head with a broken bolt in it. I pulled it, because couldn't get it in the car.

I found one local for pretty cheap. Instead of fighting extracting the bolt, can I just slap a used head on and be good?

Or do I need to get it machined?

 

Any head, even the one you took off your own car, should be checked for flatness, before it is installed on the block.

 

I know technically it should... but didn't have any issues before, and not really planning on keeping it, just getting it back on the road and away from 4th gens.

 

its only like $30-40 to check it and do a pressure check. cheap to do ....if you put it together and find out its not true or cracked