Why did my head gasket blow?

Fuel injection diagphram broke on a 95 S-15 blazer (4.3L CPI motor) I was borrowing. I knew what had happened by the rough idle and huge black smoke plumes but after I changed the fuel injector (the spider) as gas was pooling in the manifold. After that it wouldn't start. When it finally did it was chucking white smoke until the radiator went dry. I am pretty sure the head gasket blew out some time during this whole fiasco but why/when? I have driven on bad Fuelies to get them home before (s10 blazer with the same 4.3 motor) but never had this happen. Did a cylinder fill with gas?Why did my head gasket blow?it blew because the engine overheated, they usually blow when the temp gauge is past 3/4, and sometimes the head warps too so make sure you check that too.
Why did my head gasket blow?
Head gaskets will blow for just about any reason. Could have ben a manufacturer defect... could have been the day of the week. The reason isnt important now. its blown if your oil looks like milkshake. Good luck with that 4.3
Why did my head gasket blow?
to mush racing the engine. wot.