So,about 2 tears ago I put a new timing chain set in my sons truck. Didnt pull the head or the pan. Slipped cover back in & all ok til the last 1/16 of an inch. damaged the head gasket. Siliconed the crap out of it but still had some leakage. Finally got tired of adding oil frequently & the exhuast manifold was leaking so I figure what the heck. Take a day,replace the head gskt,fix manifold leak.Good weekend project. WRONG. Snapped 2 headbolts. Engine ready to come out & go to machine shop now. may as well ring it & bearing unless there are some good suggestions for getting those bolts out.