My Cossie has burst 2 rads in 2 days and I've been told the cause is most likely head gasket. I have just gone from stage 1 to stage 3, but only running a peak of 20-21psi and holding at 17-18psi. I put a new head gasket in last Summer which was a standard one, but I was told it should be ok for that kind of boost. There are no other symptomns, no oil in water, no water in oil, no funny noises, in fact the car is running fine. So what do the experts think?

And if it is head gasket, is it right th next step is group A? If so, how much and where from?

Cheers!
_________________