1.Blocked Oringed - Copper head gasket (Leaked compression into all cylinders)
2.Orings still in place - Toyota HG (No problems, although when stripped motor down to do piston rings noticed that the usual 7M HG problem had started to form at Cyl 5)
Can I remove the orings in the block which will still leave a slight groove and use a HKS MHG?
Also I want to know if you have to get both face's machined to a really good finish? I will be getting the head faced again but to a "Mirror finish" but not sure about the block. I NEED ANSWERS