i know a bad IP or lift pump can be the culprit or a bad injector. but what if it is a cracked head? what is a tell tale sign of a cracked head?

what inspired me to think this is that the oil seemed thin and light steam coming from the overflow.

 

More than likely a leaking lift pump.

 

Coolant in the oil, or\and oily junk in the coolant - depends on where the crack is - can also be a head-gasket leak - brown to beige to white froth in the oil is coolant, in successive steps of leakage

 

if i pop off the radiator cap before its hot, the oil would be at the top right?

thanks for your input