Just my luck due for rego in a couple of days :(
Last week I had blown the head gasket pretty bad well I think,
So today I stared doing the head
Need some help the car is a 81 b310
Just some info is this all normal stuff?

All 4cyl where full of water when removing head?

At the back of the head near the firewall there is a 90 degree water outlet
(Going to the heater unit inside the car)? I think? This was blocked
The head gasket had blown out on the cyl that is closest
To the firewall next the to blocked outlet, could the blockage have
Caused the blown head gasket?

If what I'm talking about is the heater unit, will it now be busted?
Or fully blocked up?

Also any ideas on trying to get a snapped head bolt out?
Without pulling the motor out and taking it to the shop.
Snapped in the middle of the head closest to the intake
Snapped bolt is hanging out 10mm

Any type of help will be awesome I'm in a bit of a rust to get this done for rego :(

Cheers shaun