Funny enough, I think it wasnt long after my last post on this thread that the engine decided to blow a headgasket....can't complain really.
The car was towed to back to my house and has sat since the end of april until now....as I had too many things going on and not enough time to work on anything.
Today, I eventually got around to actually pulling the head off and having a good gander at what went wrong. Cylinder 4 was the culprit with a water jacket at the back of the head gasket blowing through into the cylinder.
That cylinder has pitting in the bore so I'm now trying to find time to pull the block out and hopefully get it all tested and bored out again. :D Then i'll be sourcing some shallow dished pistons for the ol' 5K and slugging them into place and replacing bearings etc.
Head is currently down at the engine builders getting a going over....should be all good :D