Thanks again guys. I'm pretty certain its the head gasket, though I haven't seen any 'foam' in the oil, it over heats randomly, gets rid of lots of antifreeze with out a leak i can find, gives puffs of white smoke that smells like antifreeze, and has gas bubbles coming through the coolant resevior. sounds like head gasket to you guys?
Trick is, I don't actually have an engine hoist, I was going to borrow one for the job, but if I don't have too that would be a lot less hassle.
I have a 10mm ratcheting wrench so that's no problem, is there anything else I have to remove to get there? also, how am I supposed to torque the bolts a specific amount if I cant fit a torque wrench in there? just wing it?
I've never done a HG job before, is it necessary to keep the rockers in place with grease?
I have a worry that with 223k on the block I'm going to get the heads off and find something else wrong that needs to be fixed, is there anything else specific that I should look at while I've got it opened up?
Thanks you guys are so helpful!