I am replacing the head gaskets, 1974 scout II 345 and when finishing the final torque sequence (90lbs) the number 7 bolt snapped. Now, I have not yet extracted the threaded portion but I am looking to replace all of the head bolts. I cannot find part numbers for these bolts anywhere? Any one know where I can get new bolts? I believe the PO over torqued the bolts at one time and now they are junk. They look fine, but I cannot risk a second headache. Sorry if this info is anywhere, but I have not been able to find it. Thanks!