head gasket gone
 

think it mite fo been when i done the thermostat but it was the wrong one, didnt have any water so drive to the garage about 200 yds away, think that mite of damaged it. or unless it was cause i didnt skim the head. any ideas

Firstly where was you fixing the car to not have any water within 200 yds the moon?:confused:

I could have run 200yds to a garage in 2 minutes to get water, Its no wonder its blown if this is the case, and you should have had the head skimmed especially if you run your car with no water as this will definately cause it to warp, it must have been screeming with heat:ghey Thats all i can say really as there isnt a specific answer for stupidity:trout

no when we were changing it, lost water as it will do. put it back together and drove it slowly to the garage 200yds away. think thats what damaged it. why would the head need skimming before, i only swapped heads onto different block. both surfaces were cleaned up

s12 heads are poo, they need skimming always without exception in my and others experience

well the car is off the road for the winter now, got spare head which will get a cam in and head skimmed and flowed to suit the cam. happy days

I dont understand from your posts if you changed the thermostat or head gasket and youve mentioned swapping heads:confused:

Well he holed a piston a while back i think so i imagine he took the head off and put it on a different bottom end.

Have you done a compression test?

I predict it will blown again as Every ca18et ive known that hasnt had the head skimmed on hg replacement has blown the hg again with a few thousand miles at the most.

ally heads can warp just by taking them off incorrectly. its always advisable to surface a ally head before refitting

i thought that u only had to skim the head if the gasket blows, not if changing it. i have a spare head i can use and swap manifolds

well why did you change the head if the gasket hadnt blown?