I've started getting a small amount of oil in my reserve tank, and my exaust is putting out a bit more steam than it should be, so I think I've got a blown head gasket on my 110,000 mile 3.0 Vulcan. How hard is it to change on said motor and how much $$$ are we talking for parts, cause I'm doing it myself. I have a 260 lb. ft. impact and a smaller but much more versital 110 lb. ft. impact, along with a few other tools. Can it be done without removing the motor from the car?!? It looks like it would be a b**** to get to the back head bolts. Someone told me I would need new head bolts because the stockers are torque to yield or something like that. Lemme know guys!