Quote Originally Posted by SAX JONZ View Post
They were replaced with heavy duty studs and bolts. So let's get back ti oruginal and first overheat...the light went on and not a second after I caught it and immediately pulled over. Would an improperly burped radiator cause this so quickly? I mean my guess is that the head gasket gave between the cylinders ever so slightly and then just gave out from there, in fact, it could have already gone when on dyno. That could have been the white smoje I noticed. Probably not. Either head was torqued improperly or overheated just enough to make tge gasket shit the bed. From that point every time I gave it hell the hot air creeped under the gasket just enough to make pressure and overheat coolant.
Of course, I'm just guessing wildly here but what do you guys think?
I would say the head bolts were improperly torqued, if the head was cracked it would overheat always. Since its only under boost it seems the head is lifting slightly due to boost pressure. Get a new headgasket, have the head pressure tested and then re-surfaced and make sure you use headstuds, and be absolutely sure they are properly torqued.