whats up guys. i was driving home tonight and noticed my 88 k5 puffing white smoke out of the exhaust. when i got home there was coolant leaking from one of the exhaust leaks in my y pipe. so my guess is the head gasket. are they a pain in the a$$ to change. i have only done head gaskets on import 4 cylinders with overhead cams. it has a 5.7 tbi motor.