First let me thank everyone with their previous help. I'm new to working on my 47 plymouth. So sorry for all the questions. I have started to remove the head bolts to change the head gasket. So far most have come out with out breaking. Till tonight. I broke my first one on the exhaust manifold side and it feels like the remainder on that side feel like they are going to break as well. I've tried penetrant but I don't think it will make it past the heads of the bolts down to the threads. Does anybody have any tips? I hate to spend hours drilling and ez outing. Any and all help much appreciated.
Jeff