Nissan 300ZX Engine Coolant In Oil

I Over Headed My Car. Stopped Let Cool For 30 Mins, Started The Engine And Put Water In Radiator. High Pressure Steam Came Rushing Out. I...

I Bough A 1990 300zx And The Previous Owner Told Me He Overheated And Said I Was A Blown Head Gasket But I Turn It On And There Was No White...